dongdong has__ Greener China for two months.A.joined B.taken part in C.been D.been a member of我认为选B.

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dongdong has__ Greener China for two months.A.joined B.taken part in C.been D.been a member of我认为选B. dongdong does sports ( ) the afternoon green green green green Green green green green green green green green green green green green