问题

271. Wait for me for a few more minutes. I am _____ to a letter from one of my former classmates at college and will finish writing very soon.

A:replying
B:answering to
C:replying to
D:answering for

正确答案是：

同类题型

I’m sure I _____ her four years ago

You can’t complain about being left out ______youdon’t make any effort to share your joys and sorrows with others

This washing machine is environmentally friendly because it uses___water and electricity than___ models.

“______ did it start” “About two days ago. ”

What colour is this- It’s orange. It’s orange shirt.