Nowadays people are more concerned about the environment _______ they live.
| A．what | B．which |
| C．when | D．where |
Donald doesn’t have much patience — he often loses his _______.
| A．courage | B．mind | C．balance | D．temper |
I ________ to the lecture this afternoon, but I ________ a bit ill.
| A．should have gone; was | B．would have gone; had been |
| C．should go; was | D．would go; had been |
— I phoned you at 7 yesterday evening but nobody answered.
— Oh, I ________ my dog in the park then.
| A．walked | B．was walking | C．had walked | D．would walk |
________, I prefer to listen to classical music rather than rock ’n’ roll.
| A．Sooner or later | B．In this way |
| C．On the whole | D．Little by little |
The twin sisters look so much alike that it’s ________ impossible to tell one from the other.
| A．even | B．almost | C．slightly | D．hardly |