________ by the problem that was put forward at the meeting, the people in the audience had ________ looks on their faces.
| A．Puzzled; puzzling | B．Puzzled; puzzled |
| C．Puzzling; puzzling | D．Puzzling; puzzled |
Do you know that _____ with wise men improves your mind?
| A．chat | B．Chats | C．chatted | D．chatting |
When I said that some people are stupid I was not _____ you.
| A．talking to | B．referring to | C．turning to | D．listening to |
The house rent is expensive. I’ve got about half the space I had at home and I’m paying_____ here.
| A．as three times much | B．as much three times |
| C．much as three times | D．three times as much |
_____ my English teacher, I have become what I am.
| A．Thanks for | B．Thank to | C．Thanks to | D．Thank for |
Did you find _____ impossible for him to tell the truth?
| A．this | B．it | C．that | D．what |