_______of the household rubbish________recycled or reused since the new technology was applied.
| A．Three-fourth; has | B．Three-fourth; have been |
| C．Three-fourths; has been | D．Three-fourths; have |
The pen I______I ________is on my desk, right under my nose.
| A．think; lost | B．thought; had lost |
| C．think; had lost | D．thought; have lost |
The traveler didn’t know________which direction to go.
| A．in | B．at | C．to | D．/ |
As _____rule, apples are sold by_______weight and eggs by _______dozen.
| A．a; 不填；the | B．a; the; the |
| C．a; a; the | D．the; 不填；不填 |
—No wonder you caught a cold. You _______out last night without a coat.
—I know how silly I was.
| A．shouldn’t have gone | B．mustn’t have gone |
| C．couldn’t have gone | D．mightn’t have gone |
Smallpox, a kind of disease, has now died ________.
| A．out | B．away | C．off | D．down |