Don't worry. They'll come to help us . A. in half an hour B. in a half hour C. after hal——青夏教育精英家教网—

摘要： Don't worry. They'll come to help us . A. in half an hour B. in a half hour C. after half an hour D. after a half hour

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Don't worry. They'll come to help us ________.

A. in half an hour

B. in a half hour

C. after half an hour

D. after a half hour

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