_______ they_______, their classmates were all in the classroom.
| A．Before ; were arguing | B．When ; are arguing |
| C．While ; were arguing | D．While ; are arguing |
—When is Lang Lang’s concert?
—It’s three o’clock the afternoon of December 18th.
| A．at ； in | B．at； on |
| C．on； in | D．in； on |
---- Hurry up, or we will miss the sea lion show in the Ocean Park.
----- ______. We still have fifteen minutes before the show begins.
| A．Take it easy | B．Good luck |
| C．I guess so | D．Take care |
Running man is a very relaxing TV program_______is hot among the young people.
| A．what | B．which | C．who | D．whom |
---- David asked______ in China.----- Of course not. Chinese usually shake hands with a lady as a greeting.
| A．why he can greet a lady by kissing her |
| B．Why he could greet a lady by kissing her |
| C．Whether he can greet a lady by kissing her |
| D．Whether he could greet a lady by kissing her |
Lei Feng ______ for many years, but his spirit is still encouraging us.
| A．died | B．has died | C．was dead | D．has been dead |