—I still haven’t decided whether to go or not.—But your time is running out. Please make u

问题补充：

—I still haven’t decided whether to go or not.

—But your time is running out. Please make up your mind it is too late.

A. when

B. since

C. until

D. before

答案：

A. when

B. since

C. until

(答案→)D. before

解析：本题考查连词。第二句意：可是你时间不多了。请在为时太晚之前作出决定。 before在……之前。