2．He doesn't know what he should wear．（合并为一句）

  He doesn’t know what_________ _________．

1．He call finish doing his homework in half an hour．（改为被动语态）

His homework can ________ ___________doing in half an hour．

21．___________22．___________23．___________24．___________25．___________

七、句式转换  按括号内的要求完成下列句子。

16．___________17．___________l8．___________19．___________ 20．___________

13．___________14．___________l5．___________

C）用括号内所给动词的适当形式填空，使短文的意思正确，通顺。

    Will it matter if you don’t have breakfast? A short time ago，a test  l6  （give）in the United States．People from different ages，from l2 to 83， 17  （ask）to have a test．During the test，these people  18  （give）all kind of breakfast and sometimes they got no breakfast at all．Scientists wanted   l9   （see）how well their bodies worked when they had different kinds of breakfasts．

    The results show that if a person has a right breakfast，he or she  20  （work）better than if he or she has no breakfast．If a student  21  （have）fruit，eggs，bread and milk before  22  （go）to school，he will learn more quickly and listen more carefully in class．

    The results also show that  23   （have）no breakfast will not help you  24  （lose） weight．This is because people become so hungry at noon that they eat too much for lunch．So they will gain weight instead of   25   （lose）of weight．

8．___________9．___________10．___________11．___________12．___________

15．He told me that he had his hair ____________yesterday．

14．We don’t want to make friends with him because he is a_________ man．

13．She said she could save money by _________meals herself．

12．My father doesn’t want to go to Qingdao this summer．It’s too t__________．