We needn't have taken warm sweaters. We _______ the space in

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We needn't have taken warm sweaters. We _______ the space in our luggage for more books
a. can have used b. could have used c. ought to use
d. may have done
为什么选b 不选C, 高手们帮一下忙把,谢谢了!

你可以通过语境判断阿前面那句话说得是we needn't have taken,是现在完成时态,后面的话首先时态就要对应,要用have done形式.而且C选项是虚拟语气,表示即将发生的事,时态明显对不上.还有你要准确的理解句子本身的意思.

We needn't have taken warm sweaters. We _______ the space in We have sweaters in all ___ (颜色). 填空：We have sweaters in all c______. We have sweaters _______ all colors _______ ￥10 each. & We have sweaters _______ all colors _______ ￥50 each. [ 同义句转换 we have sweaters in all colors.we have sweaters in ( ) We needn’t go in such a hurry. We still have thirty minutes We hope the peoper in will have warm houses... We _______ water the garden .A need B need to C needn't to D the hats on()(sell) are red.we have sweaters in all()(color) for boys,we have sweaters in five colors.翻译 We have sweaters in all colors at $e_.