--When did you become a volunteer for the elderly?-- Two years ago. I _____

--When did you become a volunteer for the elderly?-- Two years ago. I ______ this group since then.

#41941

joined

took part in

have joined

have been in

推荐题目

Mr. Zhang ________ to school on the school bus every day．

#41950

going

isn’t go

goes

Does  Mr. Lee        a big head?

#40650

has

have

are

—Have you seen Mr. Smith?—Yes. Look, he _________with a parent in the office.

#39263

talks

talked

is talking

has talked

---How many times have you _________ to that place? --- Twice.

#39672

went

gone

been

－Why does the river smell terrible? －Because the water_______.

#42170

was polluted

has been polluted

will be polluted

has polluted

共2675题