游客
题文

Only when _________________________.

A.did he arrive the meeting began
B.he arrived the meeting began.
C.did he arrive did the meeting begin.
D.he arrived did the meeting begin.
科目 英语   题型 单选题   难度 较易
登录免费查看答案和解析

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

粤ICP备20024846号