How ________ you say that you really understand the whole story if you have covered only part of the
How ________ you say that you really understand the whole story if you have covered only part of the article?
A.can
B.must
C.need
D.may
答案及解析： A
解析：
can“可能、能够”，用于疑问句和否定句表示惊异，不相信等．译文：如果你只看了文章的一部分，怎么可以说你了解了整个故事呢？答案为A．