题目内容：

单词填写 (共6小题，每小题1分，满分6分)

1.If you are unhappy with the jacket, you can take it back and e     it for another.

2.His problem is not physical but m    .

3.Every student p       a student ID card.

4.Our system has to be f       enough to satisfy the needs of different people.

5.Nowadays some children are a        to computer games.

6.Nobody can p      what will happen in the future.