54 A: Where does the tour start off?B:________(A)It begins at 1:30. (B)We'll join the group at
問題詳情
54 A: Where does the tour start off?B:________ (A)It begins at 1:30. (B)We'll join the group at 2 o'clock. (C)At the main entrance. (D)Please keep up with the schedule.