根据短文内容，在短文后面的三个选项中选择一个能填入相应空格内的最佳答案。

E-schoolbags (电子书包)

Is your schoolbag too heavy? The e-schoolbag will help you. It is said that e-schoolbags are going to be brought into 　42　 　in Chinese middle schools soon.

Heavy schoolbags have been a serious 　43　 　for a long time. But the e-schoolbag will 　44　 . An e-schoolbag is 　45　 　lighter than a usual schoolbag. Perhaps, the e-schoolbag should be 　46　 　an e-textbook. It is a small computer for students. It is as 　47　 as a usual book, 　48　 it can still have all the things for study, such as textbooks, exercise books and so on. They can be made 　　49　 　chips(芯片) like stamps. The students can read the text page by page on the screen(屏幕), take notes(记笔记), or even send e-mails to their teachers. They only need to　 　50　 　the right chip into the e-schoolbag. Then they can use it.

Some people say 　51　 e-textbooks can be easily broken, while others say it is not good to students’ eyes. But only time will tell.

42. A. use　　 　　　　　　 B. useful　　　 　　 C. used

43. A. idea　　 　　　　　　 B. problem　　 　　 C. question

44. A. work it out　 　　B. work out it　　 C. work out

45. A. very　　 　　 　　　 B. much　　 　　　　 C. too

46. A. call　　 　　　　　　　 B. calls　　 　　 　　C. called

47. A. small　 　　　　　　　 B. smaller　　　　　　　 C. smallest

48. A. and　　　　　　　　　　 B. but　　　　　　　　　　 C. or

49. A. into　　 　　　　　 B. from　　　　　　　　 C. up

50. A. bring　　　　　　　　　 B. put　　　　　　　　　　 C. take

51. A. if　 　　　　　　　　　 B. what　　　　　　　　 C. that

41. He has no pen to ______ because he left his pencil-box at home this morning.

　　 A. write in　　 B. write　　 C. write with

40. My teacher asked me _______ late for school again.

　　 A. not to be　　 B. not be　　 C. to be not

39. She is ______ in the class.

A. tallest　　 B. the tallest　　 C. the taller

38. - What do you think of the flowers?

　　 一They look _______.

　　 A. beautiful　　 B. beautifully　　 C. more beautiful

37. When he heard the good news，he was ______ happy that he cried.

　　 A. very　　 B. such　　　 C. so

36. - Do you know_______ the meeting will start?

一In half an hour.

　　 A. how soon　　 B. how long　　 C. how far

35. Chongqing is really a modern city now! Many tall buildings _____ everywhere.

A. can be seen　　　 B. can see　　　 C. can’t see

34. There are some people on the playground，_______?

A. aren’t there　　 B. are they　　 C. are there

33. It is said that to teach a man fishing is better than ______ him fish.

A. give　　 B. giving　　　　 C. to give