问题补充:
You must have read about Mark Twain long ago, ?
A. mustn you
B. haven you
C. didn you
D. needn you
答案:
A. mustn you
B. haven you
(答案→)C. didn you
D. needn you
解析:考查反义疑问句。句中must have done 表示对过去的肯定推测,而且有明显的时间状语long ago。做反义疑问句时用助动词did,所以答案选C。
时间:2022-12-17 07:58:52
You must have read about Mark Twain long ago, ?
A. mustn you
B. haven you
C. didn you
D. needn you
A. mustn you
B. haven you
(答案→)C. didn you
D. needn you
解析:考查反义疑问句。句中must have done 表示对过去的肯定推测,而且有明显的时间状语long ago。做反义疑问句时用助动词did,所以答案选C。