—Are they from Canada?
—No, they ____.
| A．are | B．aren’t |
| C．not | D．isn’t |
—Must we keep the window _______ all the time?
—No, you don’t have to.
| A．opening | B．opened |
| C．to open | D．Open |
Smoking can help you relax. But _______ it is also bad for your health.
| A．or | B．so |
| C．on the other hand | D．Then |
Some medicine is dangerous for children. Parents should put the medicine in places
children can’t _______.
| A．like | B．see | C．take | D．Get |
I can do many kinds of housework _______ cooking. I’ll learn it from my mother.
| A．for | B．without |
| C．except | D．Between |
—Where did you go yesterday?
—We went to the swimming team. We have fun _______ there.
| A．swim | B．swimming |
| C．to swim | D．Swam |