We are going camping _________ 6:30 ____
问题:
We are going camping _________ 6:30 _________ the morning of December 22nd. [ ]
A. in; on
B. on; at
C. at; on
We are going camping _________ 6:30 _________ the morning of December 22nd. [ ]
A. in; on
B. on; at
C. at; on