---Excuse me, could you tell me _______?---Sorry, sir. I wasn't there at that time.A. how did the accident happenB. how the accident happenedC. how does the accident happen
the movie star goes, there are lots of fans waiting to see her.
Jim was watching a late night film______ the television went blank.
No matter____, you must keep the school rules.
Sonia will call you if she __________ to go.
------Why are you so upset? ------______I said,they didn’t believe me.