It was not until this year _____ scientists managed to make a cat and a goldfish disappear from sight using an invisibility cloak(斗篷)
A .that B. when C. while D. As
The comedy actor, _____ only 55 kilos but ____ in a heavy oversized coat , looked funny enough to make all the audience laugh.
A. weighed; dressed B. weighed; dressing
C. weighing; dressed D. weighing; dressing
______ bright a talker you are, there are time when it’s better to remain silent.
A. Whatever B. However C. Whenever D. Whoever
—Have your read the article A Dirty Beijing, which is about air pollution?
—Yes. It’s highly informative. I _____no idea that the PM2.5 there sometimes reached 300.
A. have B. had C. will have D. would have
—What do you think of being a volunteer, John?
—I find it a stressful job but one ___ you can really help people.
A. where B. which C. when D. that
—Is there anything wrong, Bob? You look sad.
—Oh, nothing much. In fact , I ____ of my friends back home.
A. have just thought B. was just thinking
C. would just think D. will just be thinking
