-It’sourduty
问题详情:
-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
知识点:非谓语动词
题型:选择题
问题详情:
-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
知识点:非谓语动词
题型:选择题