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4. You should watch this film
You should not carry so many bags. Let me help you
You should take some aspirin
You should walk the dog
3.People shouldn't drop litter
We should recycle or rubbish
Everybody should eat vegetables and fruits
Children shouldn't watch TV all day long
The rich should help poor
We should protect the environment
Your should learn foreign languages
2.I think i should do my homework
I think i should be nice to my brother/sister
I think i should learn foreign languages
I think i should protect the environment
I think i should get a good education
I think i should be polite to everybody