The classroom every day.
#44450
A
should clean
B
should be cleaned
C
should cleaned
D
should be cleaning
推荐题目
---How often do I need to feed the birds?---They______ food every day, or they will be hungry.
#44408
A
must give
B
mustn’t give
C
must be given
D
mustn’t be given
The boss made him work 14 hours a day.That means,he _______ work 14 hours a day.
#44974
A
was made
B
made
C
was making
D
was made to
A lot of trees ______ on the hill yesterday.
#44945
A
are planted
B
will be planted
C
have been planted
D
were planted