請把把下列句子改為被動態(tài),其中第7—10句必須保持主句的主語和謂語動詞不變.
1.Is he watering the flowers?
2.Are they going to pull down the house?
3.They are bound to find it out.
4.You’ll have to write out the names clearly.
5.We should deal with the second item on the agenda right away.
6.How many people is he going to invite to the party?
7.I appreciate your inviting my son to your party.
8.We hope that they would help us in doing the research.
9.We appreciate your inviting us to your party.
10.The police believe that they will solve the crime soon.