1. You should take a rest.
2. John should stop smoking.
3. You should take a taxi.
4. Mike shouldn't lift heavy things.
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1. If he didn't tell lies, people would trust him.
2. If he weren't lazy, he wouldn't fail in the exam.
3. If she weren't lazy, she could come to the party.
4. If you didn't drink too much strong coffee, you could sleep.
