-It’sourduty
問題詳情:
-It’s our duty ________our city clean and beautiful.
-Yes. We should do something for it.
A. to keep B. keep C. keeping
【回答】
A
知識點:非謂語動詞
題型:選擇題
問題詳情:
-It’s our duty ________our city clean and beautiful.
-Yes. We should do something for it.
A. to keep B. keep C. keeping
【回答】
A
知識點:非謂語動詞
題型:選擇題