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4.Change the following sentences to use the subjunctive mood.
1. The police don't work well, so thieves steal children's bikes. 2. Bob doesn't
train hard and he can't set a record. They'll lose. 3. I don't have money and I can't buy skates.4. Helen doesn't sing or play the violin, so she can't take part in the concert. 5.I am not happy because my favourite team doesn't score. 6.Bob doesn't have tools and he can't repair your TV set.