He started to learn English in 1990 and in the years ________ he kept on using it in his work.
It was not until this year _____ scientists managed to make a cat and a goldfish disappear from sight using an invisibility cloak(斗篷)
The comedy actor, _____ only 55 kilos but ____ in a heavy oversized coat , looked funny enough to make all the audience laugh.
______ bright a talker you are, there are time when it’s better to remain silent.
—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.
—What do you think of being a volunteer, John?—I find it a stressful job but one ___ you can really help people.