How lucky he was! He ____ involved in the murder.
| A．must have been | B．can have been | C．could have been | D．would have been |
. They stayed with me three weeks, _____ they drank all the wine I had.
| A．which | B．which time | C．during which time | D．during which |
____ is mentioned above, the number of the senior schools is increasing.
| A．It | B．What | C．As | D．Which |
The knife and fork ____ different uses at meals, and every westerner has ____ knife
and fork.
| A．have; the | B．have; a | C．has; the | D．has; a |
—Do you have anything more ___, sir? —Not at the moment. Have a rest then.
| A．typing | B．to be typed | C．typed | D．to type |
Which do you enjoy ___ your spare time, reading or playing chess?
| A．to spend | B．spend | C．spending | D．being spent |