Earth Day is celebration of life and our planet. It is a reminder that we need to________the world we live in and that we should learn to respect life and nature.
| A．care about |
| B．think of |
| C．refer to |
| D．watch out |
---- You can take a walk daily if you want to keep healthy.
---- .
| A．Yes, that’s enough | B．Thanks for your advice |
| C．I like surfing the Internet | D．Well, that’s OK |
our earth, or else it will be no longer fit for us to live on.
| A．Protect | B．To protect | C．Protecting | D．Protected |
Professor Williams keeps telling his students that the future to the well- educated.
| A．belongs | B．is belonged | C．is belonging | D．will be belonged |
Trees on the hills can stop the rains from away the soil.
| A．to wash | B．washed | C．washing | D．washes |
What is the best way you can imagine the overuse of water in our daily life.
| A．to reduce | B．reducing | C．reduced | D．reduce |