The water in rivers is even_________ than before. Something must be done now.
| A．dirty | B．dirtier |
| C．more dirty | D．Dirtiest |
Did you much money on the car?
| A．cost | B．pay | C．take | D．spend |
— Do you have dancing to the music?
—No. In fact, it’s very easy.
| A．satisfaction | B．difficulty | C．importance | D．kindness |
my surprise, I got the first in the math competition.
A. To B. In c. With D. Off
—Thank you for sending my mother home.
—.
| A．It’s my pleasure. | B．You’re right |
| C．Sounds terrible | D．I’m sorry |
—Tom, I am thirsty. Please go and some water for me.
| A．take | B．bring | C．drink | D．sell |