Turn the given sentences into affirmative sentences. (Превратите заданные предложения в утвердительные предложения). Don't use full stops at the end of the sentences, they are given (Не используйте точки в конце предложений, они уже даны). Example:
Can he ride a bike?

Answer:
He can ride a bike.

1. Jane can't play the guitar.

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2. Can she climb?

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3. We can't play chess.

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