Many people do not realize the importance of health _____ they have fallen ill.
| A．until | B．while | C．when | D．after |
—Why is Linlin practicing speaking English?
—________ abroad for further study.
| A．Go | B．Gone | C．To go | D．Goes |
—Why are you so excited today?
—We were told ________ a picnic this weekend.
| A．have | B．to have | C．having | D．had |
How kind you are！You always do what you can ________ others.
| A．help | B．helping | C．helps | D．to help |
He sat in the armchair, ________ a newspaper.
| A．read | B．reading | C．to read | D．reads |
I haven't seen my old friends for years. I'm really looking forward ________them.
| A．meet | B．met | C．to meeting | D．to meet |