Liza ___ well not want to go on the trip --- she hates traveling.
| A．will | B．can | C．must | D．may |
_____ that air conditioners cause so much pollution, I would never have bought one.
| A．Had I known | B．I had known | C．Were I to know | D．Did I know |
Jumping out of ____ airplane at ten thousand feet is quite ____ exciting experience.
| A．/; the | B．/; an | C．an; an | D．the; the |
–Why didn’t you give a hand to the boy?
-- I ______ , but he struggled to his feet before I tried to.
| A．would like to have | B．would like to |
| C．would rather to have | D．would better |
The moment _____ John will never forget is ______ Mr. Smith gave him a lot of valuable advice on how to improve his writing.
| A．that; that | B．that; when | C．when; that | D．when; when |
Never before _______ so highly successful in his attempts to forecast the weather accurately on a small scale.
| A．man has been | B．man is |
| C．has man been | D．will man be |