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the rooms, we began to weed the garden. [ ] A.Cleaning B.Having cleaned C.Cleane

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the rooms, we began to weed the garden. [ ] A.Cleaning B.Having cleaned C.Cleane

________ the rooms, we began to weed the garden.

[]

A.Cleaning

B.Having cleaned

C.Cleaned

D.Having been cleaned

试题答案

答案:B