______ are the students in your class—Most of them are only fourteen.

s your trip to Canada—Good, but the hotel we stayed in is ______butsatisfactory.

Mum, I’m really aboutthe result of the exam.— Cheer up. I believe you can be successful.

I got an e-mail from Liu Xin, ___ said she was going abroad for further study.

Please tell me how the accident________.I am still in the dark. [ ]