Question

we didnot see him at the meeting. he () it.A.couldnot have attended B.neednot have attended

C.shouldnot have attended D.must have attended
我想知道所选答案的理由。谢谢。

Answer 1

选A ,对过去的推测，所以用could

We did not see him at the meeting,he could not have attended it.
我们在会议上没见到他，他不可能出席了会议。

Answer 2

we didnot see him at the meeting. he () it.
A.couldnot have attended
B.neednot have attended

C.shouldnot have attended
D.must have attended

选D!
翻一下：在会议上我们没看见他。他肯定出席那个会议了。
通俗翻译一下：他肯定出席那个会议了，但我们没看见他。

其他选项根本与句子大意不符

Answer 3

选A。我在会上没有看见他，他不可能参加了。couldnot have done，表示过去不可能做过某事。
neednot have done表示过去没有必要做某事却做了。

Answer 4

D

在会议上我们并没有见到他. 他得出席此会议的.