问题

Do you know the trouble he had______________ the work

A:on finishing
B:to finish
C:having finishing
D:finishing

正确答案是：

同类题型

The clothes are very nice.Can I___________

ch pepper did you put in the soup–I’m sorry to say, ____ I forget

We had great fun ________in the water last weekend.

________ people were hurt in the accident.

____ invited, I won’t take part in suchkinds of parties.