We can never expect bluer sky unless we create less polluted world.
| A．a; a | B．a; the |
| C．the; a | D．the; the |
Micky bought an old ear cheaply，cleaned it up and sold it the next week at a______.
| A．benefit | B．bargain | C．profit. | D．prize |
Dog barking is no unpleasant noise but an auspice(吉祥)of fortune in ______ears of Chinese，especially in the coming Year of _______Dog in the Chinese lunar calendar，which starts on Jan.29 this year and ends on Feb.17 next year.
| A．a; a | B．不填； | C．不填；the | D．the；the |
My parents tried their best to laugh my fears for the coming examination .
| A．from | B．away | C．against | D．into |
—Do you like cats ?
—Of course . They mean a kind of pet to their masters .
| A．better than | B．more than | C．no more than | D．not more than |
The driver might have had an accident but that he the car suddenly .
| A．braked | B．would brake | C．had braked | D．should have braked |