Parents complain their children are behaving unreasonably _____children consider their parents to be old-fashioned.
| A．while | B．when | C．or | D．after |
I used to love that film________I was a child，but I don’t feel it that way any more.
| A．once | B．when |
| C．since | D．although |
There were some chairs left over________everyone had sat down.
| A．when | B．until |
| C．that | D．where |
She had just finished her homework________her mother asked her to practise playing the piano yesterday.
| A．when | B．while |
| C．after | D．since |
Tom was about to close the window his attention was caught by a bird.
| A．when | B．if |
| C．and | D．till |
—Could I use your computer for a few moments，please?
—________.I’m not using it myself.
| A．Come on | B．It depends |
| C．Go ahead | D．That’s great |