These new types of energy from the sun, wind and water cost very little and will never ________.
| A．run out | B．wash out |
| C．wear out | D．put out |
I have more paper clips than_______, but my CDs are fewer than________.
| A．she, her | B．she, hers |
| C．yours, your | D．hers, her |
He often gives me some advice.The sentence structure is________.
| A．S+V+P | B．S+V |
| C．S+V+DO | D．S+V+IO+DO |
I was doing my homework _______ my mother was doing some sewing.
| A．during | B．when |
| C．while | D．after |
In winter people usually keep flowers in their houses to them from the cold.
| A．produce | B．provide |
| C．protect | D．plant |
—What do you think of summer in Nanjing?
—Well, it’s sometimes ______ hot and sometimes there is ______ rain.
| A．too much, much too | B．too much, too much |
| C．much too, much too | D．much too, too much |