I didn’t hear the phone．I ______ asleep．
| A．can be | B．must have been | C．must be | D．should have been |
_____ it rains tomorrow? I think we’d better take umbrellas.
| A．In case | B．If only | C．How come | D．What if |
A modern city has be
en set up in ______ was a wasteland ten years ago.
| A．where | B．which | C．that | D．what |
I _____ an old friend of mine while I was in London.
| A．came across | B．came up | C．came out | D．came about |
The well was found __________ when we got there.
| A．digging | B．to be dug |
| C．to dig | D．being dug |
I am going to the post office. Do you have any letter _________?
| A．to be sent | B．to send | C．sending | D．sent |