It is high time for us to take measures to protect these old traditions and customs before they ___.
| A．die out | B．die away | C．die off | D．die down |
It is more important than ever to develop one’s maths, science and computer skills _______technological change is accelerating.
| A．though | B．unless | C．until | D．because |
_______ patient when you argue with someone who is not so reasonable.
| A．Be | B．Being | C．To be | D．Having been |
What’s up, Bill? You __________upset.
| A．look | B．looked | C．have looked | D．had looked |
—Edith, would you mind my opening the door?
—_______. I’m feeling rather cold.
| A．That’s all right | B．Good idea |
| C．You’d better not | D．Not at all |
—How do you like your new house, Mary?
—It is good value for the money. The only problem is that a tall tree _______ the view from the window.
| A．adapts | B．blocks |
| C．rejects | D．prohibits |