Could you tell me __________?
| A．when will they leave Beijing |
| B．when would they leave Beijing |
| C．when they will leave Beijing |
| D．when did they leave Beijing |
English is _________ international language.
| A．a | B．an | C．/ | D．the |
We'll hold a party in celebration of the 90th birthday of the CPC （中国共产党）
_________ Friday.
A. in B. on C. at
—Miss Zhou is very popular with the students.
—Yes. Her classes are_________ lively and interesting.
A. always B. sometimes C. hardly
Mrs. Weng came back from France in 2010. She _________ there for four years.
A.works B. worked C. has worked
—Do you know the song Come on, Haixi!—Yes, and I _________sing it well.
A. must B. can C. need