问题描述：
把句子变成被动式,省略动作的执行者
1.Visitors must leave umbrellas and sticks in the cloakroom.
2.We can't repair your clock.
3.We have to pick the fruit very early in the morning.
4.The police shouldn't allow people to park here.
5.The examiner will read the passage three times.
6.Candidates may not use dictionares.
7.You need not type this letter.
8.You mustn't move this man;he is too ill.
9.We shall have to tow the car to the garage.
10.You must keep dogs on leads in the gardens.
1.Visitors must leave umbrellas and sticks in the cloakroom.
2.We can't repair your clock.
3.We have to pick the fruit very early in the morning.
4.The police shouldn't allow people to park here.
5.The examiner will read the passage three times.
6.Candidates may not use dictionares.
7.You need not type this letter.
8.You mustn't move this man;he is too ill.
9.We shall have to tow the car to the garage.
10.You must keep dogs on leads in the gardens.
问题解答：
我来补答展开全文阅读