初三英语被动语态的题!将下列句子变为被动语态,1.We must water the flowers every day.2.You can use a dictionary in the exam.3.Can you need this radio?4.We should not allow fifteen-year-olds to work at night.5.Students must clean their classroom every day.还有一道：用单词的适当形式填空;He seems ______ (have)some questions to ask.

1.The flowers must be watered by us every day.
2.A dictionary can be used by you in the exam.
3.Can this radio be used by you?
4.Fifteen-year-olds should not be allowed to work at night by us.
5.Students' classroom must be cleaned by them every day.
to have
seem to do表示好像要做某事

The flowers must be watered every day.
The dictionary can be used in the exam.
Can this radio be needed?
Fifteen-year-olds should not be allow to work at night.
The classroom must be cleaned by students every day.
(应该是这样的，第3句我不确定哦~）
to have

1.We must water the flowers every day.
The flowers must be watered every day.
2.You can use a dictionary in the exam.
A dictionary can be used in the exam.
3.Can you need this radio?
Can this radio be needed?
4.We should not allow fifteen-year-olds to work at night.
Fifteen-year-olds should not be allowed to work at night.
5.Students must clean their classroom every day.
Their classroom must be cleaned every day.
having.

had

1.The flowers must be watered by us every day.
2.A dictionary can be used by you in the exam.
3.Can this radio be needed for you
4.Fifteen-year-olds shou not be allowed to work at night by us.
5.Students' classroom must be cleaned by thenselves every day.
用单词的适当形式填空;
He seems to have some questions to ask.