We’ll not attend the meeting _____ we are invited.
| A．if | B．and | C．unless | D．once |
The population of Africa is ________ so rapidly as to cause great concern of the whole world.
| A．expanding | B．stretching |
| C．extending | D．spreading |
Young people are under great pressure. Thus parents shouldn’t expect too much from them, for it will only cause pressure to ________.
| A．pick up | B．turn up |
| C．break up | D．build up |
The Voice of China has set up a big stage for young people with a gift for music, ________some of them have stood out among others.
| A．which | B．when | C．who | D．where |
After a day’s tiring climb, we arrived at________ we had been told was “Garden in the Air.”
| A．what | B．which | C．that | D．where |
It is ________ of our boss to care so much about our feelings, as a result of which many of my co-workers will decide to stay when our company is at risk.
| A．modest | B．patient |
| C．honest | D．considerate |