He was often seen _________ with charity work last year.
#44620
A
to help
B
helped
C
helping
D
help
推荐题目
Our classroom   _______   by us every day!
#44538
A
is cleaning
B
has cleaned
C
must clean
D
is cleaned
-It’s said that English ________all over China. -Not really. Only some can speak __________ English. 
#44687
A
is spoke, a little
B
is spoken, a bit
C
is spoke, a lot of
D
is spoken, a bit of