You should try to avoid _________ the same mistake over and over again.
A. to make B making C. makes D. Made
— What can we do to help animals in nature reserves?
— We can .
| A．keep hunters away from reserves |
| B．take their babies home |
| C．cut down some trees in reserves |
| D．encourage farmers to grow more rice in reserves |
— I just don’t think zoo is a good place for animals. They are not free in the zoo.
— . But don’t you think the zoo looks after animals well?
| A．I don’t agree | B．I don’t think so |
| C．You must be joking | D．Maybe you’re right |
The box was too heavy for me to carry, I pulled it into my room.
| A．so | B．and | C．but | D．or |
fit, she eats little every day.
| A．Keep | B．Keeping | C．Keeps | D．In order to keep |
Usually, a mother wolf gives birth to five to seven baby wolves .
| A．for a time | B．for the time | C．at the time | D．at a time |