Nissan's plants in Zhengzhou and Guangzhou, ________ operate in cooperation with Dongfeng Motor Corp., remained closed.
| A．which | B．who |
| C．that | D．whose |
I walked in our garden, ______ Tom and Jim were tying a big sign onto one of the trees.
| A．which | B．when | C．where | D．that |
―Do you know where David is? I couldn’t find him anywhere.
―Well. He ______ have gone far — his coat’s still here.
| A．needn’t | B．can’t | C．mustn’t | D．wouldn’t |
______ in a white uniform, he looks more like a cook than a doctor.
| A．Dressed | B．To dress | C．Dressing | D．Having dressed |
We have made ______ clear that we are strongly against smoking in the office.
| A．this | B．that | C．it | D．one |
―People should stop using their cars and start using public transport.
―______. The roads are too crowded as it is.
| A．All right | B．Exactly | C．Go ahead | D．Fine |