1£®The trees can ____ the wind ____ the earth away.

A. stop, from blowing  B. stopped, blowing C. stopped, from blow  D. stop, to blow

2 .When       the accident          ?

A. was; happened  B did; happen. C. was; happening  D. had ;happened

3 The girl  devoted all her time she had__________ others.

A. to help      B. helping     C. to helping     D. helped

4.The teacher talked loudly ______the students could hear him clearly

A because   B so that  C no matter  D in order to

5 You ___ buy the TV guide for next week, I have already bought one.

  A mustn’t  B needn’t  to  C  don’t have to  D can’t