见到客人站着,你应说:A. Sit down, please.B. How are you?C. I’m fine, too.
We are looking the picture. A. of B. from C. at
The ducks are . A. swim B. swam C. swimming
Yang Liwei the first man in space. A. was B. were C. are
We had a very funny day Sunday. A. in B. on C. at
I am some photos. A. send B .sending C. to send