—What did you do on Earth Day this year?
—We _____ a show to spread the message about protecting the environment.
| A．put on | B．put up |
| C．put away | D．put |
277. If you want to get there quickly, you'd better take the track in the forest. The underlined word means ____.
| A．a path | B．a car | C．channel | D．a canal |
276. We should take good care of our ____. Don’t forget to rinse your mouth after meals.
| A．toes | B．eyes | C．hands | D．Teeth |
275. A telephone is an instrument by which we can speak to people far away. The underlined word means ____.
| A．a tool | B．an experiment | C．an expression | D．an instruction |
274. Believe it or not, two ____ is worth an egg.
| A．tomato | B．tomatos | C．tomatoes | D．Tomatoses |
273. Which of the following is not a container?
| A．metal | B．tin | C．can | D．Tank |