【2012黑龙江齐齐哈尔】The math problem is so hard. I really don’t know_____. A. how to do it B. how to do C. what to do it
We are looking forward to you soon.A、seeing B、see C、seen
—Dad, how can I get on well with my classmates?—Try to be friendly to them. That will make it .A、easily B、easy C、easier
Food safety is important. Rules to stop people from food pollution.A、must makeB、must be madeC、can’t be made
She in a toy factory, but now she has a shop of her own.A、is used to workB、was used to workC、used to work
Do you know ______________ last Sunday?