问题

Mario, your mobile phone is ringing.-Wait a minute. It’s dangerous for us ______it while crossing the street.

A:answering
B:to answer
C:answer
D:answered;

正确答案是：

同类题型

Though he thought math was very difficult, he never _______it ______.

1These pictures will showyou____.

I’m afraid I can’t finish the bookwithin this week ——______

There were a lot of people standing at the door and the small girl couldn’t get _______

ould you rather ________ with you, Jim or Jack