问题
We must know what we should do and what we should avoid _______ a good impression on others in public places.
A:to leave
B:leaving
C:to have left
D:leave;
B:leaving
C:to have left
D:leave;
正确答案是：
同类题型
“Would you like to give me a hand— Sure, .
France is European country. India is Asian country.
Pity that I haven’t got a ticket for the concerttonight—It doesn’t matter I’m sure it _______ on TV
He kept looking at her, wondering whetherhe her somewhere.
________ I can see, there is only one way to solve this problem