The building around the corner caught fire last night．The police are now _______ the matter．
| A．getting through | B．working out | C．looking into | D．watching over |
---- Did Mary come to the party?
---- I don’t know. She _____ while I was out.
| A．might have come | B．might come | C．should have come | D．must have come |
The result is a better understanding of the world on all sides, ____ a future world_____ people from all countries are respected and different views and opinions are tolerated.
| A．lead to; that | B．leading to; that | C．leading to; where | D．to lead to; in which |
After the long journey, the three of them went back home, _____.
| A．hungry and tiredly | B．hungry and tired |
| C．hungrily and tiredly | D．hungrily and tired |
I _____ while watching the movie 2012 last night. Unluckily, my roommate woke me up.
| A．had fallen asleep | B．have fallen asleep | C．fell asleep | D．fall asleep |
_____ that air conditioners cause so much pollution, I would never have bought one.
| A．Had I known | B．I had known | C．Were I to know | D．Did I know |