–Our classroom _________ twice a day. So it is very clean.–It is important for us to do this.
#44640
A
is sweeping
B
is swept
C
sweeps
D
has swept
推荐题目
Teenagers should_____________ drive. They’re not serious enough.
#44709
A
allowed to
B
be allowed to
C
allow to
D
not be allowed to
When I called Mr. Li, he and his wife ________ in the rain.
#44704
A
trapped
B
were traped
C
were trapped
D
were trapping
It’s a rule in my class that our classroom ______ before 6:00 p.m. every day.
#44688
A
be able to clean
B
should be cleaning
C
must clean
D
must be cleaned