In the global economy, a new drug for cancer, ________ it is discovered, will create many economic possibilities around the world.
A.whatever B.whoever
C.wherever D.whichever
When he ______ the bill in the restaurant, he suddenly realized that he had left his wallet in the car.
A.paid B.would be paying
C.was to pay D.had paid
—The new machines have arrived and are being tested in the workshop.
—I’m glad we _____ them in the years ahead.
A.will be operating B.have been operating
C.would be operating D.had been operating
Their team _____first prize in the 4×100 relay race, but the last runner fell down half way.
A.could get B.must have got
C.must get D.could have got
While reading, try to develop a more _______ attitude, instead of accepting everything at face value.
A.realistic B.critical C.ambiguous D.casual
—Hello. I’d like to have a talk with Mr. Smith staying in your hotel.
—I’m sorry, he isn’t here. He ________ this morning.
A.checked in B.dropped in
C.checked out D.dropped out
