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Theyarebusy.Look!Theyarefillingtheirbags

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问题详情:

Theyarebusy.Look!Theyarefillingtheirbags

They are busy . Look ! They are filling their bags ____________ clothes and other things .

A. in              B. with             C. of           D. by

【回答】

B

知识点:介词和介词短语

题型:选择题