. The buses, most of _______ were already full, were surrounded by an angry crowd.
| A．that | B．it | C．them | D．which |
---- One more question, Sir?
----Wait a minute. I ____ your questions for more than 30 minutes without a break.
Where is my cup?
| A．have been answering | B．have answered |
| C．had answered | D．answered |
Peter has been busy these days and seldom ____ to come over to have a chat with me.
| A．does he have time | B．he has time |
| C．doesn’t he have time | D．he hasn’t time |
. ---Have you paid your phone bill?
--- No, the bill is _____ at the end of the month.
| A．accurate | B．due | C．available | D．continuous. |
.My reaction towards my classmates at the party was so cold and emotionless ____ I had never been interested in them.
| A．as | B．that | C．as if | D．as to |
--- Do you mind if I smoke here in the living room?
--- Well, if you ___. But I’d rather you didn’t.
| A．can | B．might | C．must | D．needn’t |