Don't cross the road until the traffic lights ________ green. [ ]A. turns B. turn C. turned D.

题目简介

Don't cross the road until the traffic lights ________ green. [ ]A. turns B. turn C. turned D.

题目详情

Don't cross the road until the traffic lights ________ green.

A. turns
B. turn
C. turned
D. are turning
题型:单选题难度:偏易来源:北京模拟题

答案

B

更多内容推荐