Be careful not to ______ your bike with so many heavy bags. 
#54224
A
turn off
B
set off
C
take off
D
fall off
推荐题目
____________ your mother _________ a sister?
#61377
A
Do, have
B
Do, has
C
Does, have
D
Does, has
Ms Green often does some        on weekends .
#61487
A
wash
B
washing
C
washes
D
to wash