Although they feel tired, _________they still go on working.
| A．so, | B．but | C．/ | D．and |
I_______ the piano for two years.
| A．have bought | B．will buy |
| C．am buying | D．have had |
Helen often ______ a lot of time listening to music.
| A．costs | B．pays | C．takes | D．spends |
I have work to do today than before, so I have more time _____.
| A．less / relax | B．fewer / to relax |
| C．less / to relax | D．fewer / relax |
The work is so difficult that we can’t finish it in time ____.
| A．of our own | B．to our own |
| C．on our own | D．with our own |
I have something important to do, so I can’t go to the meeting. Please ask John to go _____.
| A．instead of | B．instead | C．also | D．too |