—The plane is due to take off at 7：50 from the airport.
—________ we fail to arrive there on time?
—Try to take another flight then.
| A．What if | B．As if |
| C．Even if | D．Only if |
Professor White has written some short stories, but he is _____ known for his plays.
| A．the best | B．more |
| C．better | D．the most |
. How cold it is! We’ve never had ______ this winter.
| A．the colder day | B．a cold day |
| C．the coldest day | D．a colder day |
Boris has brains. In fact, I doubt whether anyone in the class has _____IQ.
| A．a high | B．a higher |
| C．the higher | D．the highest |
“What do you think of the service here?” “Oh, ______. We couldn’t have found a better place.”
| A．too bad | B．sorry |
| C．wonderful | D．impossible |
“I’ve never found a better job.” “_______.”
| A．I don’t think so | B．Too bad |
| C．Congratulations | D．Don’t worry |