Hardly ____ the airport when the plane took off.
| A．I had arrived at | B．had I arrived | C．had I reached | D．I had got to |
Personally speaking, Chinese parents should encourage children more, getting their confidence to _____ .
| A．pick up | B．turn up | C．build up | D．take up |
To our relief, the European company expressed their ____ to co-operate with us.
| A．anxiety | B．concern |
| C．willingness | D．complaints |
Yesterday, my father was so lost in his thoughts that he didn’t realize he ____ the red lights.
| A．ran | B．was running | C．runs | D．has run |
A bird is known by its song, and a man by his _____.
| A．action | B．friends | C．talk | D．nature |
When I got into the office, I found Mr. Green ____ in his work, without noticing my arrival.
| A．buried | B．burying |
| C．to bury | D．to be buried |