In spring, we can often hear some birds_______ in our school.
#54239
A
singing
B
sing
C
to sing
D
sings
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My uncle         the club in 2010.  He        the club for over 3 years.
#55149
A
joined; has been a member of
B
joined; has joined
C
has joined; has joined
D
has joined; has been in
—Remember to      your homework to school tomorrow, Sam.—OK,       . Mr Wu.
#58906
A
take, I will
B
bring, I will
C
carry, I will
D
take, I do
Lucy prefers ________ to __________.
#61741
A
to walk, jogging
B
walk, jog
C
to walk, jog
D
walking, jogging