Last Sunday they reached Qingdao,____a c
题型:选择题
问题:
Last Sunday they reached Qingdao,____a conferencewas to be held. [ ]
A. which
B. that
C. when
D. where
Last Sunday they reached Qingdao,____a conferencewas to be held. [ ]
A. which
B. that
C. when
D. where