6. The president is paying a        (私人的) visit to his neighbouring country.

5. —I narrowly escaped being hit by a speeding car yesterday.

—You can never be        careful in the street.

4. The ability to store knowledge makes computers different from every other machine        (迄今为止) invented.

3. Our new house is very        (方便) for me as I can get to the office in five minutes.

2. It’s known to all that unless you take       (有规律的) exercise,you won’t keep good health.

1. Would you like to go to the concert with me,Mary?

—I have got no interest in it.         (另外) ，I have lots of homework to do.

6. 我不得不向守门人出示通行证。

5. 他寄给了我一部英语小说。

 4. 他教学生化学。

 3. 你能建议我挑选哪一个吗？