_____ a dairy every day and you’ll improve your writing.
| A．Keeping | B．To keep |
| C．Keep | D．If you keep |
--Would you please go out for a walk with me? -__, but I'm too busy now.
A. That's right.
B. I'd love to
C. Of course not
Most animals walk ____ four legs.
A. of B. to C. on
—We are going to play in tomorrow’s football match．I feel very nervous．Dad．
—________．I'm sure you can win the match．
| A．Sorry | B．Take it easy |
| C．Good idea | D．Have fun |
The man ________ is talking to our teacher is Betty’s father．
| A．which | B．whom |
| C．who | D．what |
If you have trouble pronouncing these words, you can repeat them over and over again ________ you are comfortable with them．
| A．unless | B．if |
| C．until | D．while |