问题补充:
—Tom didn’t come last night,did he?
—No.I have waited for him.A whole night was wasted.
A. would
B. should
C. couldn’t
D. needn’t
答案:
A. would
B. should
C. couldn’t
(答案→)D. needn’t
解析:needn’t have done表示“本没有必要做但实际上做了”。
时间:2022-04-22 02:40:46
—Tom didn’t come last night,did he?
—No.I have waited for him.A whole night was wasted.
A. would
B. should
C. couldn’t
D. needn’t
A. would
B. should
C. couldn’t
(答案→)D. needn’t
解析:needn’t have done表示“本没有必要做但实际上做了”。