1.The girl in white must be a nurse,a.isn't she b.mustn't shec.may not she d.didn't she为什么不是b?2.This exercise is__difficult_____.a.so;that few of us can dob.so;that few of us can do itc.too;for anyone of us to dod.too'for anyone of us to do
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1.The girl in white must be a nurse,a.isn't she b.mustn't shec.may not she d.didn't she为什么不是b?2.This exercise is__difficult_____.a.so;that few of us can dob.so;that few of us can do itc.too;for anyone of us to dod.too'for anyone of us to do
1.The girl in white must be a nurse,
a.isn't she
b.mustn't she
c.may not she
d.didn't she
为什么不是b?
2.This exercise is__difficult_____.
a.so;that few of us can do
b.so;that few of us can do it
c.too;for anyone of us to do
d.too'for anyone of us to do it
答案是b我选a,为什么要接it?顺便解释下什么叫复合句
1.The girl in white must be a nurse,a.isn't she b.mustn't shec.may not she d.didn't she为什么不是b?2.This exercise is__difficult_____.a.so;that few of us can dob.so;that few of us can do itc.too;for anyone of us to dod.too'for anyone of us to do
1.mustn't的意思是“必须不能够”,表示一种严厉的禁止意思.这里是个特殊用法记住就好.在must be的反义疑问中,一般用be动词的相应形式提问.
2.之所以加It就是因为整个句子是个复合句.复合句就是两句及以上的句子合成一个句子,中间用一个连词连起来.判断是否是复合句的标准是连词去掉之后两个句子都还分别是完整的句子.这句中的两个句子就是this exercise is difficult.Few of us can do it（这里如果不加it句子就不完整了对吧~）.如果用too to结构则应该把c中的anyone换成any
1，must非助动词，反问应沿用前句的动词be，即a
2，do是及物动词，后边必须带宾语，所以后边要加it；
复合句，多个简单句和连词组成的句子。
1.穿白衣服的那个女孩一定是个护士，是吧？
must be 表示语气很强的推测，体现的动词还是在be 上
mustn't 意为“不可以，禁止”的意思，通常后接实义动词的原型，不接be动词
2. that 后面要接从句，也就是说要接完整的句子（主谓宾要全）
This exercise is so diffcult that few of us can do it...
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1.穿白衣服的那个女孩一定是个护士，是吧？
must be 表示语气很强的推测，体现的动词还是在be 上
mustn't 意为“不可以，禁止”的意思，通常后接实义动词的原型，不接be动词
2. that 后面要接从句，也就是说要接完整的句子（主谓宾要全）
This exercise is so diffcult that few of us can do it (the exercise).
C选项若为too;for any one of us to do 【注意any和one是分开的】，此时C就可选了
复合句就是多个简单句组成的句子，楼上说的没错。如
She has a cat.和 Nobody likes the cat. 是两个简单句。
把他们合并在一起 ： She has a cat which nobody likes. 她有一条没人喜欢的猫。 这就成了一个复合句。
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