My father didn’t have to say anything. I knew he was upset from his ________.
| A．look | B．sight | C．appearance | D．sign |
It is ______ great pleasure to meet the expert who is doing research on _________ archaeology.
| A．/ ; | B．/; the | C．a; the | D．a; / |
People who cannot _____ between colours are said to be colour-blind.
| A．distinguish | B．compare | C．contrast | D．distribute |
When we went past her house, we heard her ____ in her room.
| A．dance | B．dancing | C．sing | D．singing |
To get there in time, they came ______ all the way.
| A．to run | B．running | C．ran | D．run |
Finding her car stolen, ___________.
| A．a policeman was asked to help |
| B．the parking place was searching thoroughly |
| C．it was looked for everywhere |
| D．she hurried to a policeman for help |