There are _________ students in the classroom. Can you tell me where they are?
The sentence structure(结构)of “He often makes me happy” is ________.
There will be ________ time left. Let’s hurry, or we can’t finish the work.
We can ________ with each other by e-mail with the help of the Internet nowadays.
Binhai RT-Mart Supermarket (大润发超市) has been open ________.
You’d better stop ________ .You look too tired.