问题

________ when thedoor burst ______.
A:it
B:look up
C:look into
D:No soonerdid he collect the papers on his desk open
B:look up
C:look into
D:No soonerdid he collect the papers on his desk open
正确答案是:
同类题型
We______ a school trip next Wednesday if it is fine.
Is everyone here ? — Not yet … Look, there ___ the rest of our guests !
You’d better stop complaining again and again. Otherwise, you’ll ______ quarreling with Rose again.
Excuse me, may I come in— Not yet. Please wait on your chair _____ your name is called.