Each button, when ____, provides a piece of beautiful music.
| A．clicked |
| B．having clicked |
| C．clicking |
| D．being clicked |
—Who do you guess I am?
—Sorry, your name ____ my mind.
| A．slipped |
| B．has slipped |
| C．had slipped |
| D．slips |
—Can I help you with it?.
—I appreciate your _____, but I can manage it myself.
| A．advice |
| B．question |
| C．offer |
| D．idea |
—Hello, John. This is Alice. I’m calling from work. How’s your mother feeling?
—______. Mum is out of hospital, but she has to stay in bed for a few more days.
| A．You are welcome. |
| B．That’s thoughtful of you. |
| C．What a pleasure. |
| D．By all means. |
When I start to work, I have ____ better understanding of ____ society.
| A．a; the |
| B．the; a |
| C．/; the |
| D．a; / |