Can, can't, have to, not have to ​

1. I can’t speak about the book. I (have not  read) it yet.
2. Every day I ( wind up) my watch at 7 o’clock in the morning.
3. It’s Friday. Have you ( seen) him this week?
4. Students usually ( buy) books at the House of Books.
5. It’s a pity, but I (have not bought) this dictionary yet.
6. As a rule we ( do) many exercises in class.
7. He (has told) this joke many times.
8. Something (has gone) wrong with my watch.
9. I have already ( translated) these sentences into French.
10. They (have) their English many hours a week.
11. She ( works) much and usually ( gets) many good marks.
12. We (have bought) a new TV set this year.

The first thing to do if it turns out that your teenager more or less regularly smokes is to understand why smoking was attractive to him.
Secondly, it is important to understand how important these motives are for your child, that is, for him cigarettes are only attributes of adulthood, play or for this predilection there are significant psychological problems. For example, a teenager can not find his place among peers, he is not accepted, he is not sure of his attractiveness. Or he is too dependent on his teenage group. If you feel that your child is not yet involved in smoking, but only experimenting with cigarettes, discuss with the child all the pros and cons of smoking.