Boys, don’t lose____ in playing Angry Birds. It is bad for your eyes to play computer games for a long time.

The number of the students in our school is about nine ____. ____ of them are boys.

What’s wrong with my son, doctor? — ____________ serious, just a slight cold. He’d better drink some water.

If you don’t know how to spell the new word, please ________ in the dictionary.

do we have a meeting? —To choose our monitor.