英语语法题.Itisthefirsttimewesuchagreatquantityofcotton.A:importedB:haveimportedC:shouldimportD:wouldhaveimported为什么选A?不选C?考的是什么内容~Whyisyouaresolateforclass?A:itthat

Question

英语语法题.
It is the first time we _____ such a great quantity of cotton.A:imported    B:have imported    C:should import     D:would have imported 为什么选A?不选C?考的是什么内容~ Why is _____ you are so late for class?A:it that    B:that it    C:it be    D:that 为什么选A?不选D?考的内容是什么?

Answer 1

It is the first time we _____ such a great quantity of cotton.A:imported B:have imported C:should import D:would have imported 应该选B.
到目前是第一次.指从过去到现在.考的是现在完成时态.
Why is _____ you are so late for class?A:it that B:that it C:it be D:that
正常的句子结构是：it is why that ...
it 这里是形式主语,that从句是真正的主语.所以it不能省略.考的是形式主语在疑问句中的用法.