--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
Millie _________ a picture when Mr. Green came in.
#39146
A
draw
B
will draw
C
drew
D
was drawing
I ________ an engineer when I grow up.
#38133
A
am
B
was
C
will be
D
has been
He has already gone home. But before he left, he__________ all the mistakes in his translation.
#36724
A
had corrected
B
has corrected
C
corrected
D
would correct