The river has become much ______ than before because of the waste water.
A. dirty B. dirtier C. Dirtiest
相关试题
—_____ kind girl Nancy is! —Yes, she is always ready to help others.
| A．What | B．What a | C．How | D．Ho w a |
Can you imagine what life will be like in ______ time?
| A．50 years’ | B．50 year’s | C．50-years’ | D．50-years |
—I can’t stop smoking, doctor. — For your health, I’m afraid you ______.
| A．may | B．can | C．have to | D．need |
—Look at the noisy kids!
—Haven’t you heard the saying “When the cat is away, the mice ______?”
| A．play | B．played | C．are playing | D．will play |
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