complete the sentences use must/mustn't or should/shouldn't and the correct form of the verbs in brackets.
1. Inna_____(stay) up so late at night.
2.In the UK, you_____(drive) on the left side of the road.
3. You_____(clean) your teeth more often. They're yellow!
4.We_____(protect) wild animals if we want them to survive
5 You_____(smoke) here. It's against the law.
6. You_____(buy) that CD. It's great!

1. Inna shouldn't stay up so late at night.

2.In the UK, you must drive on the left side of the road.

3. You should clean your teeth more often. They're yellow!

4.We must protect wild animals if we want them to survive

5 You mustn't smoke here. It's against the law.

6. You must buy that CD. It's great!