--When did you become a volunteer for the elderly?-- Two years ago. I ______ this group since then.
#41941
A
joined
B
took part in
C
have joined
D
have been in
推荐题目
When I______ the cinema, the film ______.
#37946
A
arrived at; began
B
got; began
C
got to; had begun
D
had got; had begun
It _____ me more than one hour to read the book yesterday.   
#41978
A
take    
B
takes  
C
to take
D
took
I _______my teacher since last year. I miss him very much.
#41560
A
didn’t see
B
saw
C
haven’t seen
D
see