12.--Mike,the telephone is ringing.--I _________ answer it.A.will B.am going to C.am to D.am about to13.How long do you think _______ the computer company turns out a new product?A.it will be that B.will it be until C.will it be since D.it will be be

12.--Mike,the telephone is ringing.--I _________ answer it.A.will B.am going to C.am to D.am about to13.How long do you think _______ the computer company turns out a new product?A.it will be that B.will it be until C.will it be since D.it will be be
12.--Mike,the telephone is ringing.
--I _________ answer it.
A.will B.am going to C.am to D.am about to
13.How long do you think _______ the computer company turns out a new product?
A.it will be that B.will it be until C.will it be since D.it will be before
14.--Good morning.How much should I pay for these books ________ to Alabama?
-- Hm,about ten dollars.
A.being sent B.to be sent C.sent D.having been sent

12.--Mike,the telephone is ringing.--I _________ answer it.A.will B.am going to C.am to D.am about to13.How long do you think _______ the computer company turns out a new product?A.it will be that B.will it be until C.will it be since D.it will be be
1 A.will
will 1,说话时才决定的事 2,主观的认为 3,我愿意做...
be going to 1,有计划的决定 2,有客观依据而可能发生
be about to do一般与when连用
be about to do...when意思为“正要/正准备做某事,就在这时……”.
2.D.it will be before
陈述句语序
3.B.to be sent
寄之前问 用不定式表将来

12 B. am going to 表将来（立刻，马上，动作比will要快）
13 D. it will be before
do you think 是插入语，句子结构变为陈述语序，助动词放主语后面
14 C. sent 过去分词修饰books

12 A 是“会”的意思 BCD都有计划去做的意思 显然不符题意 只是电话铃响了 所以will 就可以了
13 D 先排除BC 因为do you think 的do已经是谓语已经倒装了 所以后面的这个部分就不用倒装 再按句意 选D
14 B books 是将要被 send 用将来时

12 A will do是临时安排的活动，而be going to do则是已经安排好的活动。
13 D 这是一个固定句型。It will be +一段时间+before sth.用不了多久就能……
14 C sent用过去分词形式作后置定语，修饰books.

12.选A.
am going to表示预先就打算做，
will可表示临时的决定。
13。选D.
首先，有插入语do you think ,后应用陈述语气。
其次，用before,表现在到事件发生的时间段，和how long 对应。
14。选B
这里是问书的邮寄费，若选C,让sent修饰books
，那么问的是被邮寄的书值多少钱。与题...

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12.选A.
am going to表示预先就打算做，
will可表示临时的决定。
13。选D.
首先，有插入语do you think ,后应用陈述语气。
其次，用before,表现在到事件发生的时间段，和how long 对应。
14。选B
这里是问书的邮寄费，若选C,让sent修饰books
，那么问的是被邮寄的书值多少钱。与题意不合。

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