---You seem to have had that car for years.
---Yes, I should sell it ________ it still runs.
| A．before | B．during | C．until | D．while |
The climate conference was attended by 11,000 people, it the largest UN gathering ever held.
| A．making | B．to make | C．made | D．to be making |
Bob's lectures a fairly wide range and I can't sum up what he says in a few sentences.
A. covered B. conveyed C. considered D
. commanded
They don't feel safe in our town at night because it so dangerous. There's a robbery every week now.
| A．becomes | B．became | C．has become | D．had become |
We should bear in mind that social development and balance of nature should go in .
| A．company | B．sympathy | C．association | D．harmony |
The beautiful mountain village we spent our holiday last year is located in is now part of Guangxi.
| A．which; where | B．where; what |
| C．that; what | D．when; which |