If you are to treat your friends to dinner in a good restaurant at the weekend, you’d better book a table .
A. ahead
B. before
C. ahead of
D. in advance
网友回答
A. ahead
B. before
C. ahead of
(答案→)D. in advance
解析：句意：你如果在周末要在一个好的餐馆请你的朋友们吃饭，你做好提前订好桌。短语：in advance 提前，预先。所以选D。