问题
选择题
| We had to wait half an hour _____ we had already booked a table. |
A. since B. although C. until D. before |
答案
答案：B
搜题请搜索小程序“爱下问搜题”
| We had to wait half an hour _____ we had already booked a table. |
A. since B. although C. until D. before |
答案：B