--- How come your father can read books in German? --- Well, he____on a project with some German engineers for 3 years when he was young.
My parents were quarrelling about me ____ I could not quite tell why.
A dozen ideas were considered____the chief architect decided on the design of the building.
—It’s a top secret.—Yes, I see.I will keep the secret _____you and me.
Speaking of all the songs he has written, I think this is probably his____one. better-known B. well-known C. best-known D. most-known
After two years’ research, we now have a ____ better understanding of the disease.