____________ your father saw you, what would he say?
A. If B. Suppose C. Unless
Volunteering gives you a chance ________ lives, including your own.
| A．change | B．changing | C．changed | D．to change |
________ basic first－aid techniques will help you respond quickly to emergencies.
| A．Known | B．Having known |
| C．Knowing | D．Being known |
________at the cafeteria before，Tina didn't want to eat there again.
| A．Having eaten | B．To eat |
| C．Eat | D．Eating |
The sun began to rise in the sky，________the mountain in golden light.
| A．bathed | B．bathing |
| C．to have bathed | D．have bathed |
________warm at night, I would fill the woodstove, then set my alarm clock for midnight so I could refill it.
| A．Staying | B．Stayed | C．To stay | D．Stay |