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whenever wherever whatever however
as little as possible as less as possible as much as you can as more as you can
Only if ; will you Only if ; you will Unless; will you Unless ; can you
Only if ; will you Only if ; you will Unless; will you Unless ; can you
No, thanks. You’re right. Yes, thank you. That’s all right
You have to You don’t have to You can You can’t
are, eat will be, eat are, has will be, have
you get much hungrier in space than you do on the earth you can't have water to drink in a spaceship astronauts must learn many new and different things you can't eat anything in a spaceship
Only if; will you Only if; you will Unless; will you Unless; you can
No, thanks. You’re right. Yes, thank you. That’s all right
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