问题

The boy is only five years old, but he is quite used the telephone.[ ]

A: to answer
B: to answering
C: of answering
D: by answering

正确答案是：

同类题型

What do you think________ in the future

It rained so heavily last summer that the water in the river ___three feet.

_____ food is hard to find, few birds remain throughout the year.

Don’t ____ our hopes. Things will go well soon.–Sorry, I won’t. We should learn to be brave when we’re in difficulties.

When people cut down big trees, new trees should be planted. ,they will have no trees to cut down in the future.