Becoming ___________ in any language is a dream many people have, but few achieve.
| A．interested | B．strange |
| C．fluent | D．active |
The government has decided to give preference to those environmently-friendly business and companies in all aspects in _______ of sustainable development.
| A．case | B．terms | C．honor | D．concerns |
The Voice of China is such a popular program with viewers has produced many a music-lover.
| A．who | B．that | C．where | D．as |
The split between humans and apes is believed by scientists______15 to 20 million years ago.
| A．to be occurring | B．having occurred | C．to have occurred | D．to occur |
In China, the number of cities is increasing _____development is recognized across the world.
| A．which | B．whose | C．where | D．that |
You have been working for hours. It’s no______ you are exhausted. Why not take a rest?
| A．doubt | B．wonder | C．need | D．sense |