Question

2. Because of the heavy traffic,it was already time for lunch break she got to her office.

   A. since   B. that

   C. when   D. until

Answer 1

2. C

2. C解析:句意：由于交通堵塞，当她到 达办公室的时候已经是吃午饭的时间 了。由句意知，此处应是表示时间 “当……的时候”，因此用when。