问题
选择题
— Did you arrive here this morning?
— Yes, it was at nine o'clock _____ we came here. [ ]
A. when
B. before
C. which
D. that
答案
答案：D
搜题请搜索小程序“爱下问搜题”
— Did you arrive here this morning?
— Yes, it was at nine o'clock _____ we came here. [ ]
A. when
B. before
C. which
D. that
答案：D
