问题

Please __________your mobile phone when you are having a meeting.

A:when; shouting
B:while; to shout
C:when; to shout
D:while; shouted;

正确答案是：

同类题型

We should know that we can only reach the top if we are ready to _________ and learn from failure

Sam ________ some knowledge of the computer just by watching others working on it.

下列字母中属于元音字母的一组是。

.My reaction towards my classmates at theparty was so cold and emotionless ____ I had never been interested in them.

sisted that she ______ not guilty ,but we insisted that she ____ into prison