What exactly does the sign _______?
#55260
A
stand for
B
stood for
C
stand up
D
stood up
推荐题目
It’s not good for people __________ waste water (污水) into the river.
#62287
A
to put
B
putting
C
to pour
D
pouring
—Tom, ______ your books on the floor. I want to mop it. —OK, mum. I’m coming.
#56661
A
put up
B
put on
C
put away
D
put out
Peter is busy ___________ at school, but he never forgets __________ exercise every day.
#58784
A
work, doing
B
working, to do
C
work, to do
D
working, doing