What a" nice day! We should go sightseeing __ watching TV in the hotel.

I hear our teacher will be back          three weeks' time.

Both my parents were born ______ 1970.

—Up to now the Chinese Communist Party（中国共产党）has nearly     history.
?—Yes, it was founded       July 23rd, 1921.
?

If you do things ________, usually you can’t do them well.

I go to school ________ bus every morning.

— What does your English teacher look like?
— She’s tall and thin ________ long hair.

－ It seems to me traveling by plane is dangerous.
－ I don’t think so. ______ planes have the best safety records.

－ So many things _ you! Where are you going?
－ I’m going ______ a trip to Tibet.

We have been in China    three years. We like it very much.
A. in                  B. since               C. for