[单选题,7.6分] The oil-tanker is running ________.

[单选题,7.6分] The oil-tanker is running ________. A.to the best of its ability B.

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[多选题,8.8分] There are many _______ playing on the p

[多选题,8.8分] There are many _______ playing on the playground. A.child B.childr

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