—Forests are very important, aren’t they?
—Yes. They can prevent the water washing the earth away.
A．for B．to C．from
| A．both | B．smooth | C．health | D．think |
| A．large | B．smart | C．sugar | D．dark |
| A．rice | B．bike | C．inside | D．gift |
--- Are you happy with your grades in the math exam?
---Not at all. I can’t have ________________.
| A．a worse one | B．a better one |
| C．the worst one | D．the best one. |
---What do you often do_______classes to relax yourselves?
---We often do eye exercises, listen to music or do some running around the school.
| A．in | B．among | C．between | D．through |