It was on November 15, 2010 ______ a big fire happened in Shanghai, ______ was a great shock to lots of people.
A．when; that B．that; when C．which; when D．that; which
Knowing office rules -- whether ______ or not -- is important, especially for young job seekers.
A．written B．writing C．being written D．having been written
"I'm more nervous right now than when I ______," Jane said, as she saw the group of reporters waiting anxiously at the exit of the gym.
A．had competed B．compete C．was competing D．have competed
Though it is 30 years______ we last met, I still remember the scene ______ we got separated on a rainy day.
A．since; where B．before; which C．since; when D．before; where
-- Waiter! How soon can I get my food? I just have half an hour left before my train leaves.
-- It ______ be ready in five minutes.
A．may B．should C．could D．need
Out of the crowded bus ______, who was dressed in a black suit, waving to a woman.
A．a tall man stepped B．stepped a tall man
C．did a tall man step D．a tall man did step
