Under the new schedule, school teachers must ______each class on time, instead of adding extra lessons.
| A．cancel | B．ignore | C．abandon | D．dismiss |
__________ our earth, or else it will be no longer fit for us to live on.
| A．Protecting |
| B．To protect |
| C．Protect |
| D．Protected |
Don't __________ a trick on the little girl. She is very shy.
| A．take |
| B．have |
| C．give |
| D．play |
__________ your attention focused on practicing, and you can reach your goal of becoming an excellent pianist.
| A．Keep |
| B．Keeping |
| C．To keep |
| D．If you keep |
Anyone who wants to go raf-ting this weekend, raise your hands please，__________？
| A．doesn't he |
| B．don't they |
| C．do you |
| D．will you |
Bring the flowers into a warm room __________ they'll soon open.
| A．or |
| B．and |
| C．but |
| D．for |