My sister met him at Ningbo Grand Theatre yesterday afternoon, so he your lecture.
| A．couldn’t attend | B．mustn’t have attended |
| C．shouldn’t attend | D．couldn’t have attended |
S cientists have many theories about how the universe________into being.
| A．came | B．was coming |
| C．had come | D．would come |
As the air is being polluted，many kinds of wild animals are________.
| A．died | B．dying down |
| C．dying out | D．death |
Although the wind has________，the rain remains steady，so you still need a raincoat.
| A．turned up | B．gone back | C．died down | D．blown out |
We have every reason to believe that________2012 London Olympic Games will be________success.
| A．/；a | B．the；/ | C．the；a | D．a；a |
I appreciated________back and greeting that afternoon after our departure.
| A．you to call | B．you call |
| C．your calling | D．you’re calling |