It____ ten years ______ I graduated from university.
| A．has been; since | B．is; before |
| C．was; since | D．will be; before |
At the meeting place of the Yangtze River and the Jialing River __________, one of the ten largest cities in the world.
| A．does Chongqing lies | B．Chongqing lies |
| C．does lie Chongqing | D．lies Chongqing |
Some insects __________ the color of their surroundings to protect themselves.
| A．take in | B．take on | C．take over | D．take off |
We promise ________attends the party a chance to have a photo taken with the movie star.
| A．whoever | B．whom | C．who | D．whomever |
The girl was frightened at the sight of a snake and her heart was _______ fast.
| A．striking | B．hitting | C．jumping | D．beating |
The villagers have already known_________we’ll do is to rebuild the bridge.
| A．this | B．that | C．what | D．which |