This tower,_____ they are planning to have decorated,is always the best place to have a view of the sea.A where Bwhich Cwhat Dthat还有请区分hold back hold down hold up

This tower,_____ they are planning to have decorated,is always the best place to have a view of the sea.A where Bwhich Cwhat Dthat还有请区分hold back hold down hold up
This tower,_____ they are planning to have decorated,is always the best place to have a view of the sea.
A where Bwhich Cwhat Dthat
还有请区分hold back hold down hold up

This tower,_____ they are planning to have decorated,is always the best place to have a view of the sea.A where Bwhich Cwhat Dthat还有请区分hold back hold down hold up
This tower,_____ they are planning to have decorated,is always the best place to have a view of the sea.
A where Bwhich Cwhat Dthat
选B,which引导非限定定语从句,what不能引导定语从句,that不能引导非非限定定语从句,CD排除,这里which作从句中have的宾语,其实就是they are planning to have the tower decorated
注意区分where,which引导定语从句,要看where,which指代的内容在句子里是充当什么成分,如果指代宾语,那及物动词后面就跟which,不及物动词where.
hold back隐瞒；控制；阻碍；犹豫不决
hold down压住； 使固定；限制；镇压
hold up举起；支持；拦住；拦劫

B.
首先，非限制性定语从句，排除C和D。
其次，其中，this tower 在从句中作have sth decorated（这属于have sth done 的用法）的宾语，不是地点状语，因此，排除A。
选B。
如有其它疑问，欢迎继续提问!

选which
hold back vt. 阻碍, 退缩, 隐藏, 克制, 隐瞒hold back 1．keep sth./sb.in place；prevent from 阻止*Police horses were used to hold back the crowd．警方的马队被用来阻 止群众。*If I had not held him back， he would have b...

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选which
hold back vt. 阻碍, 退缩, 隐藏, 克制, 隐瞒hold back 1．keep sth./sb.in place；prevent from 阻止*Police horses were used to hold back the crowd．警方的马队被用来阻 止群众。*If I had not held him back， he would have beaten you soundly．要 不是我阻止了他，他一定把你痛 打一顿。2． restrain oneself；control（sth．such as a feeling）克制；抑制（表 情）*Jim held back his anger and avoided a fight．吉姆忍住了怒气，避免了一场斗殴。*He was so impatient that I could not hold him back．他非常急躁，我制止不了他。*I held myself back from saying a word．我克制自己不说一个字。*Though very angry，I held back from telling him exactly what I thought.虽然非常生气，但我能克制，未把我的真实想法告诉他。3．delay 拖延Heavy rain on the road held us back．路遇大雨我们耽搁了。*We can't hold the meal back for more than half an hour to wait for you．我们不能因为等你而把开饭时间推迟半小时以上。4． retain possession of； keep back 保有；扣留*He held the money back from his client.他把钱扣下不给当事人。5．keep from（advancing to the next grade， stage， level， etc．）阻止（前进）；使留在（原级、原阶段、原水平等）*No one can hold back the wheel of history.谁也不能阻止历史车轮前进。*You show promise as a musician but your lack of practice is holding you back．你有希望成为音乐家，但你懒于练习，使你毫无进展。6．stay back or away； show unwillingness；remain behind 走开；退缩；畏缩不前；犹豫不定*When danger appeared，every one of them held back．当出现危险时，他们中每一个人都退缩了。*We must never hold back before difficulties．我们在困难面前决不 退缩。*She is very shy；she always holds back when we invite her to a party. 她很害差，我们请她去聚会时，她 总是犹豫不决。7．conceal； keep（a secret， etc．）to oneself隐瞒；保守（秘密等）*He told me most of the facts of the affair，but I'm sure he's still holding back some important in formation．他对我讲了那件事的大部分 情况，但我相信他仍保留了一些 重要的东西没有告诉我。*You shouldn't hold anything back from us；we want to know the whole story．你不应有所隐瞒，我 们要知道全部事实。*I could tell from his nervousness that he was holding back．看他局 促不安的样子，我就知道他心里 隐瞒了什么事。

hold down
1． control or limit the freedom of；keep in obedience压制；使服从*Kings used to know very well how to hold down the people．国王很了 解如何使人民服从他们。2． keep on the ground or in place 固定在地上或原地*The police held the man down to prevent him escaping．警察把这人按倒在地上以防他逃跑。*We must hold the tents down because of the strong wind．风很大，我们必须把帐篷固定住。3． work satisfactorily at；keep（a job）顺利地工作；保住（工作）*Mr．Wang has held down the tough job for a long time．王先生干这份艰苦的工作已经很长时间了。*He seems to be unable to hold any job down．似乎他什么工作都保不住。*My father holds down quite a good job in the university．我爸爸在这所大学有份相当好的工作。4.restrain；check ；control；keep at a low level压制；压低；控制；缩减*Hold down the noise！将声音放低一点。*These measures helped to hold down traffic accidents．这些措施有助于减少交通事故。*When Bob gets mad， you can't hold him down．鲍勃发火的时候，你无法控制他。*We should hold down our expenditure．我们应该压缩开支。*Last year we had to hold down the enrolment because of the cuts in the grants．由于补助金减少，我们去年不得不压缩招生人数。5.take care of照应；照料*Her neighbour held down her family duties while she was out on an errand．她出差期间，她的邻居料理她的家务。

hold up
1.support；raise举起；抬；拿*My husband has lost so much weight that he has to wear a belt to hold his thousers up.我丈夫体重减了好多，他只好用根带子把裤子提起来。2．prove true；prove effective or accurate证明属实；证明准确、正确*The police were doubtful at first，but that worker's story held up．警察起初怀疑，但那位工人的叙述证明情况属实。*The weather forecasts don't always hold up．天气预报并不总是那么准确。*The contract will hold up for ten years．这合同有效期10年。3．remain good；not get worse保持不衰；不坏*Sales held up well．销售情况不衰。4. support；keep from falling承受住；不倒*Don't worry．The house will hold up.别担心，房子不会倒下。*The chair was too weak to hold you up．这椅子不牢，经受不住你的体重。*How does he hold up under such a responsibility？他怎么能承受住这么大的责任？5. keep up跟得上；不掉队*Though it was a long walk，the youngsters held up until the last minute．虽然这是长途跋涉，但是孩子们一直跟到最后，没有掉队。6． keep one's courage or spirit up；remain calm；keep control of oneself振作精神；稳定情绪；自己控制自己*The grieving mother held up for her children's sake．这位伤心的母亲为了孩子们在控制自己的情绪。7．stop for a short time；delay暂时停止；停顿；延续*The policeman held up the traffic to allow pedestrians to cross the road．警察挡住车辆让行人过街。*Work on the building site has been held up by bad weather．由于天气恶劣，建筑工地上的作业被延误了。*We were held up for nearly an hour on our way by the traffic accident．我们在路上被交通事故耽搁近一个小时。*The steel strike may hold up production for several months，钢铁工人的罢工会使生产停顿数月之久。8. rob抢劫*The criminals held up the plane and took all the passengers'money．这些歹徒劫持了飞机，并将乘客的钱财洗劫一空。*That bank has been held up threetimes．那家银行被抢了3次。9. show…as an example提出（作为榜样）*He was held up to the students as a model of emulation.他被提出来作为学生的楷模。*Our English teacher held up excellent models of composition for her class to imitate．我们的英语老师在班上展出了优秀作文让同学们模仿。10．last；maintain in a state持续；维持；坚持；挺住*I think the car will just about hold up till we reach London.我认为这辆车能差不多正好让我们开到伦敦。*Mr．Black holds up very well， in spite of all the trouble and illness he's had．布莱克先生尽管遇到了 许多麻烦而且又生病，但是他挺 住了，过得不错。*Smith's bank could hardly hold up in the depression史密斯的银行在 经济箫条期间很难坚持下去。

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