2．——青夏教育精英家教网——

1．Wang Bing was very glad to receive a letter from his old classmates．（改为同义句）
Wang Bing was very glad tohearfrom his old classmates．

20．Li Lin listens to English on the radio every day．（改为否定句）
Li Lindoesn'tlisten to English on the radio every day．

19．Don't worry．Bill will help you look after your dog when you ________ away on business．（　　）

18．---You play the piano so well．________ do you take piano lessons？
---I go to piano lessons twice a week．（　　）

17．Chen Wei isn't at school today ________ he is taking a robot competition in Shanghai．（　　）

16．Students do less homework now．Usually it ________ before 9 o'clock in the evening．（　　）

15．---Must we finish the work today？
---________．We have something else to do tomorrow．（　　）

No，we needn't

14．You should ask Bob ________ his own clothes．He is ten years old now．（　　）

13．---It's hot today．Have some ________，please．
---No，thanks．I'm not thirsty at all．（　　）

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