（三）经典例题解析
1. My mother has sports on Friday afternoon.改成否定句

2. There are some books and computers on the desks.改成否定句

3.He's seldom late for school__________?
A. hasn't he #39;t he he he 

4. Let's take a walk outside,_______?
A. don't we you we we

5.I don't think he has to go,_________?
A. do I he n't he he

6. ____________do you prefer, rice or noodles?
A. What B.Which C.How D.When

7. Mrs Black came to China             .
Mrs Black has been in China              . 

8．_________important news is to everybody in a modem city!
A. What B.How C.What an D.How an 

9. A:____is it from our school to the museum? 
B:About 20 minutes' walk.
A. How long B.How fast C.How far D.How soon 

10. A:____does Peter weigh now?
B：44 kilos．
A. How heavy B,How C.How much D.What