-The light in the office is still on.
-Oh, I forgot __________.
| A．turning it off | B．to turn it off |
| C．turning it on | D．to turn it on |
Trees are very important to our environment. They can stop wind from blowing the earth away.
| A．kept | B．put | C．take | D．prevent |
—Hi, have you found your lost watch?
—Not yet, I have looked for it everywhere, but I still haven’t found it.
| A．at those places | B．here and there | C．somewhere | D．over there |
Every teacher is supposed to be honored.
| A．think | B．allow | C．should | D．may |
As we know, none of us likes pollution.
| A．no one | B．not everyone | C．someone | D．nothing |
— I came first in the long jump.
— ______. I’m so proud of you.
| A．Good luck | B．Have fun |
| C．Well done | D．You’re joking |