20．The zipper was invented in 1987When wasthe zipperinvented?——青夏教育精英家教网——

20．The zipper was invented in 1987（画线提问）
When wasthe zipperinvented？

19．He ______be reading in the library now because it is closed today．（　　）

18．Nobody could __the man from ___into the house on fire because his mother was in it．（　　）

17．I'd rather ______to the bookstore to buy some books．（　　）

16．Your hair is too long，Jack．Please have it ______this afternoon．---OK，mum．（　　）

15．The girl used to ___with chopsticks，but she gets used to ___with knives and forks now．（　　）

eating，eating

14．It is_______that the first computer was invented in America．（　　）

13．Could you please ________ us Mary's telephone number？（　　）

12．He has a friend who_____ the piano very well．（　　）

11．Have you read the book _______ by Lu Xun？（　　）

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