问题

I was about to get on the bus _________someone called
A:as
B:when
C:before
D:while
B:when
C:before
D:while
正确答案是:
同类题型
Suzy is well __________. She keeps all her things in good order.
The car is different ____________ that one. It is more expensive.
Don’t________the window. It’s ________outside.
I can’t remember how many years ago _____ a fight broke out between the husband and the wife
Will $200 __________ the cost of the damage?—I’m afraid not.I need at least 100 more dollars.