I had to ______ because someone else wanted to use the phone.
| A．hang on | B．keep up | C．hang up | D．ring up |
The huge picture looks more beautiful _____ the blue sky.
| A．against | B．to | C．over | D．under |
We share a_________ purpose, so let’s help each other.
| A．common | B．ordinary | C．general | D．ordinary |
It was a _____ evening and I really had a good sleep.
| A．calm | B．silent | C．quiet | D．still |
Is your ring _____ gold?
| A．real | B．true | C．actual | D．factual |
He has a _______ knowledge of animals.
| A．brief | B．folk | C．flat | D．broad |