We must have received the letter yesterday, but it didn’t arrive.must——shouldmus

游客2023-12-15 47

问题 We must have received the letter yesterday, but it didn’t arrive.

选项

答案 must——should

解析 must have done是肯定推测，但根据句意应当是“我们本该昨天就收到信，但至今仍没有收到”，故应当用should have done，表示“本应该”。

转载请注明原文地址:https://tihaiku.com/zcyy/3274802.html

相关试题推荐

随机试题

最新回复(0)

Wemusthavereceivedtheletteryesterday,butitdidn’tarrive.must——shouldmus