Complete the sentences.
1.I should study tonight because ...
2.I ought to visit my friend because ...
3.You had better visit him today because ...
4.You should see a doctor because ...
5.We ought to help them because ...
6.You shouldn't work too hard because ...
7.You had better leave now because ...
8.They oughtn't to leave so early because ...
9.You had better not go out because ...

1. ...I want to get a good marks.

2. ...I have not seen him for a long time.

3. ...he is leaving tomorrow.

4. ...you look bad.

5. ...they are good people.

6. ...it's unhealthyit's.

7. ...the store will close soon.

8. ...we gathered recently.

9. ...there is a hurricane.