3. Kate _______ the letter before her mother came into her bedroom.

A. has written　　 B. was written　　 C. had written　　 D. is writing

2. It was raining heavily outside, the children were made 　　　in the classroom.　　　

A. stay　 　　B. to stay　　　　 C. staying　　 D. stayed

1. If the work 　　　, you can go and play games.

A. finished　　　 B. has finished　　 　C. will be finished　　 D. is finished

根据所给提示，写一篇有关“汉堡包”发明的文章。要求不少于70词。

提示：

1. 以前人们吃面包、肉和蔬菜；　　

2. 一位欧洲人在面包中间加入肉和蔬菜；

3. 一位来自德国汉堡的人把它带到了美国，被

叫做“汉堡”；

4. 很受人们的喜爱，尤其是年轻人。

_____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

A: Where are you going, Tony?

B: The library. I want to borrow some books.

A:　　 56　

B: About inventions. You know I have to prepare for

　　 the science lesson.

A: 　　57　 　And we humans are really great.

B: That’s true. People have made lots of inventions.

A: 　　58　

B: Sorry, I’m not sure. 　　59　

A: I don’t agree. In my opinion, cars are the most

　　 useful.

B: 　　60　

A: Because I can go anywhere quickly and conveniently in my car.

55. 与其他人相比，我们幸运多了。

　　 ________________ others, we are much luckier.

54. 你知道这些纸是丝制的吗？

　　 Do you know _________________________ silk?

53. 从现在开始我帮你照顾你的宠物。

　　 ________________________ I will help you look after your pet.

52. 如果是在线杂志，纸张就不需要了。

　　 If the magazine is online, ___________________.