Haven’t seen you for ages! Where have you been — I went to Ningxia and _______ there for one year, teaching as a volunteer.

_______ hard work it is! I can’t do it by myself.

Could you tell me ______ for the school trip—Next Friday, I think.

It’s impossible to live without computers!— _____ My parents never use computers and they’re living a happy life.

Not only _____ a promise， but also he kept it.