If we________now to protect the environment,we’ll live to regret it.
A.hadn’t acted | B.haven’t acted |
C.don’t act | D.won’t act |
相关知识点
推荐试卷
If we________now to protect the environment,we’ll live to regret it.
A.hadn’t acted | B.haven’t acted |
C.don’t act | D.won’t act |
试题篮
()