2019学年度人教版选修七Unit4SharingPeriod1Warming up and pre-reading课件(7张)
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5. A和B之间的异同 _____________________________________ 6. in groups _________________ 7. 在下两页 _________________ 8. 帮助摆脱困境 _________________

help out

similarities and differences between A and B

成组地;成群地

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