Two years _____ since I came here.
| A．passed | B．has passed | C．have passed | D．past |
Some physics problems in this book are _________difficult for the students _________work out.
| A．so; that | B．not; but |
| C．such; that | D．too; to |
---I think students should have mobile phones to call their parents.
---___________. They often use them to play games instead.
| A．I hope so | B．I don’t agree |
| C．No problem | D．Good idea. |
Traditionally, Chinese people _______ the Chinese characters Double Happiness and stick them onto walls or doors at the weddings.
| A．look out | B．cut out |
| C．give out | D．come out |
There is no doubt ________ the Diaoyu Island is part of China's territory.
| A．whether | B．when |
| C．why | D．that |
---Is the Youth Center open to the public yet?
---Yes. It ______ for almost one and a half years.
| A．has opened | B．has being opened |
| C．has been open | D．was open |