The classroom every day.
#44450
A
should clean
B
should be cleaned
C
should cleaned
D
should be cleaning
推荐题目
The number of people invited ______ fifty, but a number of them ______ absent(缺席) for different reasons.
#44499
A
were; was
B
was; was
C
was; were
D
were; were
The decision about the price ______ in a few days. So they have to wait.
#44634
A
is made
B
was made
C
is being made
D
will be made
Students should ______ to choose their own uniforms.
#44721
A
allow
B
allowed
C
are allowed
D
be allowed
Don’t discuss the problems with your partner unless you ___ to do so.
#44804
A
ask
B
are asked
C
will ask
D
will be asked
At that moment，he was last __________ the room with his friends．
#44658
A
seen leaving
B
to see leave
C
seen to leaving
D
to see to leave