I heard the voices, but I couldn’t _______ what they were saying.
| A．look out | B．cut out |
| C．leave out | D．make out |
You can’t appreciate happiness _______ you have known sadness too.
| A．because | B．when | C．though | D．unless |
We shouldn't have come north for Christmas vacation. If we _______, we wouldn't be stuck in the snow right now.
| A．wasn't | B．didn't | C．hadn't | D．weren't |
The lack of movement caused the player’s muscles to _______ and he might never play the sport again.
| A．hurt | B．ruin | C．weaken | D．threaten |
With the victory at the French Open, Li Na has reached NO．4 in the world, ______ the previous Asian Record.
| A．equaled | B．equaling | C．to have equaled | D．having equaled |
Miss Jones _______ music at Bardon School for five years when she was abroad and now she is an actress.
| A．taught | B．has taught | C．had taught | D．has been teaching |