The first question was quite difficult but the rest _______ easy, _______ surprised us all.
| A．was; which | B．was; that | C．were; which | D．were; which |
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 |
In this district for five months or more of the year, no construction can be done _______ the rainy season makes it impossible.
| A．before | B．while | C．until | D．when |