A vast area north of the Yangtze River ______by the first heavy SNOW of the new year，causing difficulties to the post-festival road transport.
| A．were affected | B．was affected | C．had affected | D．has affected |
As the party was very informal, Jack stood there looking stiff andin his formal dress.
| A．comfortable | B．awkward | C．convenient | D．surprising |
Markhave hurried. After driving at top speed, he arrived half an hour early.
| A．needn’t | B．wouldn’t | C．mustn’t | D．couidn’t |
He didn't makeclear when and where the sports meet would be held.
| A．this | B．it | C．that | D．one |
Being able to speak another language fluently is a greatwhen you are looking for a job.
| A．advantage | B．chance | C．assistant | D．importance |
, he dialed 999.
| A．Seen the house on fire | B．To see the house on fire |
| C．Being seen the house on fire | D．Seeing the house on fire |