2.他那时有生命危险。(in danger)

1.为了研究印度文化他去了印度。(do research)

5.The dictionary costs 50 yuan.

    A.at last   B. at least

   C. as for   D. across from

3.Li Yan is a helpful girl. She always my little sister while Fm away.

  A.looks for      B. takes after

  C. looks after   D. runs after 

2.—Jerry,Fm doing homework. Please stop in that loud voice.

 —I feel about that.

  A.to talk;happy      B. to talk;sorry

  C. talking; sorry      D. talking; happy 

l.If it tomorrow,well have a sports meeting.

 A.isn’t rain   B. doesn’t rain

 C. rains        D. not rain

5.它们重达5400千克。

They    5,400 kilograms.

4.调查时寻找有趣的资料。

  interesting facts when you are  .

3.我们还应该做什么？

  should we do?

2.如果这条河被污染，鱼就会死。