问题详情:
Air pollution is very serious now.We hope scientists will________ a way to solve the problem.
A.set off B.put off C.come up with D.catch up with
【回答】
C
知识点:动词
题型:选择题
问题详情:
Air pollution is very serious now.We hope scientists will________ a way to solve the problem.
A.set off B.put off C.come up with D.catch up with
【回答】
C
知识点:动词
题型:选择题