Canada is one of _____ largest countries in the world, ______ second only to Russia．
| A．the; the | B．the; a |
| C．a; the | D．the; 不填 |
—Would you mind answering some questions on shopping habits?
— _____________________________.
| A．Yes, with great pleasure |
| B．No, I am afraid I can't make it |
| C．Yes, it is worth the time |
| D．No, as long as it doesn't take long |
— What are you doing this Saturday?
— I'm not sure, but I go to the Rolling Stones concert.
| A．must | B．would | C．should | D．Might |
--Hi, Tracy, you look tired.
--I am tired. I _________ the living room all day.
| A．painted | B．had painted |
| C．have been painting | D．have painted |
Money spent on the brain is never spent ______.
| A．in ease | B．in anger | C．in vain | D．in comfort |
He managed to make himself _____ at the meeting yesterday.
| A．understanding | B．to understood |
| C．understood | D．to be understood. |