4. 考查hardly / scarcely置于句首时的倒装
当否定副词hardly, scarcely等置于句首时，其后习惯上要用倒装语序(与一般疑问句形式相同) 。如：(答案为A)
Hardly _________ Edinburgh than they were ordered to return to London.
A. had they reached B. they had reached
C. have the reached D. they have reached
5. 考查no sooner等置于句首时的倒装
当no sooner, no longer等结构置于句首时，其后习惯上要用倒装语序(与一般疑问句形式相同) 。如：(答案分别为AC)
(1) —Did Linda see the traffic accident?
—No, no sooner _________ than it happened. (天津卷)
A. had she gone B. she had gone
C. has she gone D. she has gone
(2) No sooner _________ mowing the lawn than it started raining.
A. have I started B. I have started
C. had I started D. I had started
Maybe you have been to many countries, but nowhere else _________such a beautiful place. (辽宁卷)
A. can you find B. you could find
C. you can find D. could you find