.Part of the family _______ out on holiday. They are supposed to be back at the end of this week.
| A．is | B．are | C．was | D．were |
I can’t advise you what to do; you must use your own ______.
| A．opinion | B．purpose | C．suggestion | D．judgement |
I don’t like talking on ______ telephone; I prefer writing ______ letters.
| A．a; the | B．the; 不填 |
| C．the; the | D．a; 不填 |
She keeps a supply of candles in the kitchen in case of power ______.
| A．drop | B．lack | C．failure | D．absence |
Mr. Smith used to smoke ______, but he has given it up.
| A．seriously | B．heavily | C．badly | D．hardly |
--- Have you finished your homework?
--- No, I ______ my father on the farm all day yesterday.
| A．was helping | B．am helping |
| C．have helped | D．helped |