下列各句中均有一处错误，指出并改正。
(1) My grandpa said last summer they earned quite a lot by sell the fish.
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(2) But no matter how many times I asked to watching them, my parents would not let me.
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(3) Everyone was silent, wait to see who would be called upon to read his or her paragraph aloud.
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(4) Some of us were confident and eager take part in the class activity, others were nervous and anxious.
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(5) In their spare time, they are interesting in planting vegetables in their garden.
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(6) We can choose between staying at home and take a trip.
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(7) I showed them I was independent by wear strange clothes.
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