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There doesn't seem to be much chance for his research group

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There doesn't seem to be much chance for his research group to make breakthrough in the field
_____ to be much chance for his research group to make breakthrough in the field.
A.This doesn't seem B.There hasn't seemed C.There doesn't seem D.It doesn't seem
为什么呢?
There doesn't seem to be much chance for his research group
C 本题考察的是形式主语的用法
首先可以排除A、B,A的this不正确,形式主语一般的只能用it ,B在时态上产生了错误
之所以在C和D中选C,是因为句末用的是“in the field”,这是个地点状语,而原句显然是讲:在那个平原上已没有任何机会能让他的考察团有所突破了.
PS:我下面说的there作形式主语只是为了便于你的理解,其实there不能说它就是形式主语
there doesn't seem to be .和 it doesn't seem to be.,there和it都可以作“形式主语”,(注意,我只是说可以,因为原题正是采用了形式主语的用法.真正用了没还得看句子本身,我下面有句例句可以供你参考)真正的主语是后面there或it所指代的内容,it通常指代具体的事物,而there则指代地点状语
这句话真正的主语是“in the field”,原句去掉there这个“形式主语”,实际上====In the field doesn't seem to be much chance for his research group to make breakthrough.
再给你看it doesn't seem to be 的例句:It doesn't seem to be a good day for him to go jogging today.真正的主语是today===Today doesn't seem to be a good day for him to go jogging.
当然了,如果把例句中today去掉,it 就可以变成真正的主语,可以自己体会一下