---Mr. Smith must know a lot about Chinese history.
---________. He has studied it for years.
| A．So he does | B．So does he | C．So he must | D．Yes, he must |
I tried to call you last night, but I couldn’t ______.
| A．get through | B．go through |
| C．tell off | D．turn off |
. Which ______ did you enter for at the sports meet?
| A．affairs | B．incidents |
| C．businesses | D．events |
In the end the police decided not to ban the ______.
| A．parade | B．distribution |
| C．march | D．import |
. The tyre of your car is flat. It needs ______.
| A．blowing off | B．blowing up |
| C．blowing out | D．blowing over |
The balloons, a great ______, ______ the atmosphere of the festival.
| A．scene; added up | B．scenery; added up to |
| C．view; added | D．sight; added to |