从方框中选择合适的短语，并用其适当形式填空。
be bad for coal and oil come from clean things |
1．The girl
________ America. She is an exchange(交换) student here.
2．We can use water
________.
3．There is much
________ in this place. People sell them for money.
4．Playing with the mobile phone in the dark
________ your eyes.
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