二、单项选择(15分)
21.Let’s stop _________.I feel tired.
A.resting B.breaking C.to have a rest D.to work
22.I’m afraid Tom _________ his work yet because the light is still on in his office.
A.won’t finish B.hasn’t finished C.doesn’t finish D.didn’t finish
23.It’s difficult _________ them to finish the work in a month.
A.for B.as C.to D.of
21.Let’s stop _________.I feel tired.
A.resting B.breaking C.to have a rest D.to work
22.I’m afraid Tom _________ his work yet because the light is still on in his office.
A.won’t finish B.hasn’t finished C.doesn’t finish D.didn’t finish
23.It’s difficult _________ them to finish the work in a month.
A.for B.as C.to D.of