I think students should have their own mobile phones at school.—__________. They often use them to play games instead.

He was born ________the evening ________September 2nd, 2009.

It’s dangerous to swim in this river.— Yes, you are right. The government has_______ people not to swim in it.

She has never read this book, __________ she —__________, so she knows little about it.

How old is she — __________.