连词成句，加上必要的动词，系动词或者情态动词，注意时态和语态。
1. Linda, not allow, swim, alone, go
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2. Peter, instead of, play computer, watch TV, on weekends
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3. I, if, enough, money, a new computer, buy, I
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4. I, if, see, banana, a monkey, give, some, them, a zoo, in, I
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