题目内容
3. 去太空旅行对大多数人来说是困难的。
It’s difficult for most people.
3. to travel into outer space
10. (2015 •无锡) Sally loves chocolate. That (explain) why it,s hard for her to lose weight.
62. The computer caught a (病毒) and could not work yesterday morning.
2. There might be no food,water or air on (火星).
() 3. — Who will give us the speech on public manners? — Mr Brown,but I'm not sure.
A. can B. need C. must D. might
1. Don’t drink the water in the river. It is (被污染的) .
3. Air (pollute) is one of the biggest problems in the world.
3. Crime is on the (增加) every year in the world.
8. You can (easy) jump very high if you wear this pair of boots.
