At night the koala bear gets up and _________ .
A. eats leaf B. eat leaf C. eats leaves
To ____ nature is to help ourselves, or we will be punished.
| A．protect | B．prevent | C．provide | D．pollute |
The panda isn’t _____to go through the hole.
| A．enough fat | B．enough thin | C．thin enough | D．fat enough |
You should keep your eyes _____ when you do eye exercises.
| A．close | B．open | C．closed | D．opened |
---Mom, there is little milk,______?
---No,there isn’t. Could you please go and buy some?
| A．is there | B．isn’t there |
| C．is it | D．isn’t it |
If you can’t read the new words, you may __ in the dictionary.
| A．look it up | B．look up it |
| C．look them up | D．look up them |