A survey of the opinions of scientists _____ that three hours of outdoor exercise a week _____
good for our health.
| A．show; are | B．shows; is | C．show; is | D．shows; are |
from Adelaide to Darwin and you’ll observe some of Australia’s most beautiful landscapes.
| A．Traveling | B．To travel | C．Traveled | D．Travel |
It is in the year of 2010a severe drought hits Yunnan province.
| A．until | B．that | C．before | D．when |
Mr. Li arrived at the Wuguang train station twenty minutes ago, but the train to Guangzhou yet.
| A．hadn’t come | B．won’t come | C．hasn’t come | D．didn’t come |
To pass the driving test, Alice had a busy month driving the car.
| A．to practise | B．practising | C．practised | D．practice |
How can they expect to learn anything they never listen?
| A．when | B．until | C．unless | D．though |