A sudden change in temperature _______ to bring rain or snow.
| A．gets | B．turns | C．hopes | D．tends |
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 |
Weon it for several hours but we haven't yet reached any conclusion.
| A．are working | B．work | C．have been worked | D．have been working |