—How was your journey last week?
—Very interesting. The people there still keep the custom _____ the Ming Dynasty, which is different from other areas.
| A．dating back to | B．dating back | C．dated back to | D．dated back |
I ________ for Beijing in a few days. Do you know when the earliest plane _________?
| A．leaves; takes off |
| B．is leaving; is taking off |
| C．am leaving; takes off |
| D．leave; is taking off |
My parents have always been _________ travelling whenever they get the chance.
| A．curious about | B．pleased with |
| C．concerned about | D．keen on |
---Do you mind if I open the window?
---I feel a bit cold.
| A．Of course not. | B．You'd better not. |
| C．Go ahead. | D．Why not? |
While the dog, you should take care not to Otherwise, it may be dangerous to strangers.
| A．walking; get it loose |
| B．walk; be loose |
| C．walking for; get it loose |
| D．train; get it run |
From the _____ look on his face, we know he is _____.
| A．frightening; frightened | B．frightened; frightened |
| C．frightening; frightening | D．frightened; frightening; |