Waste paper mustn’t _______. We should keep our environment clean.
#44420
A
throw away
B
thrown away
C
be thrown away
D
been thrown away
推荐题目
—Look at the sign on the right. —Oh, parking ______ here.
#44971
A
doesn’t allow
B
isn’t allowed
C
didn’t allowed
D
wasn’t allowed
Usually John ________ to school in his father’s beautiful car.
#45016
A
has taken
B
is taking
C
is taken
D
has been taken