问题

The old couple have been married for 40 years and never once ______ with eachOther.

A:they had quarreled
B:they have quarreled
C:have they quarreled
D:had they quarreled

正确答案是：

同类题型

He was very careless in his work, so he really __________ to be fired.[ ]

__________ he does has nothing to do with me.

Is this the first time that you _____ here?

One island and two lakes _______________ the country.

_________ those boys are playing __________ in the club!