游客
题文

Air pollution, together with littering, ____ many problems in our large industrial cities today.

A.causes B.cause C.caused D.causing
科目 英语   题型 单选题   难度 中等
知识点: 谓语
登录免费查看答案和解析
相关试题

Mary is one of the brightest students who_________ from New York University.

A.is graduated B.have graduated
C.has graduated D.are graduated

Mr. Alcott, headmaster of the school, refused to accept made by the Students' Union.

A.either B.neither C.any D.none

Mary is short__________ her brother is very tall.

A.still B.nor C.while D.when

There was less food for birds and also for the Prairie dog, an______holes in the ground.

A.livs B.is living C.living D.lived

--Do you mind if I smoke here?
--____________.
A. Sure. Go ahead B. No. Go ahead C. Yes. Please

Copyright ©2020-2025 优题课 youtike.com 版权所有

粤ICP备20024846号