It’s too late. I have to go now.—Oh, it’s raining heavily outside. You’d better stay ___________ it stops.

The 3G cellphone must be of great use and convenience to wants to get the information through the Internet quickly.

How do you feel when you watch the national flag go up–It makes me very proud.

He said, “What’s the matter?” — He asked _____. [ ]

It is really terrible ________ me to wait for a long time ________ a rainy night.