English is understood all over the world ________ Turkey is spoken by only a few people outside Turkey itself.
| A．while | B．because | C．unless | D．as |
Hong Zhanhui never gives up trying. It is the love and responsibility _______ has driven him to go through hardships and survive in life.
| A．what | B．which | C．who | D．that |
Several witnesses gave accounts of what they had seen. It took many hours to _______ the court of the driver's guilt.
| A．prove | B．convince | C．persuade | D．demonstrate |
We invited her to join us in the discussion, but she would not _______.
| A．take action | B．take notice | C．take part | D．take notes |
The tomato is the world's most popular fruit. _______ the pumpkin, botanically speaking it is a fruit, not a vegetable.
| A．Just like | B．Just as | C．Such as | D．For example |
—How unhappy your roommate looks!
—Yes, but he's not willing to tell me what it is _______ is troubling him.
| A．what | B．which | C．as | D．that |