Mary has a brother, and ________ name is Bob.
| A． |
her |
B． |
its |
C． |
his |
John ___________ on his friend when he went to Guangzhou last month.
| A．dropped on | B．dropped in |
| C．dropped at | D．dropped for |
—Paper ___________ wood. We should not waste paper.
—I agree. I always use __________ sides of paper.
| A．is made of; either | B．is made from; both |
| C．makes of; both | D．makes from; either |
Are you familiar _____________ the rules of baseball?
| A．of | B．from |
| C．to | D．with |
In the past, the workers were made __________ 12 hours a day.
| A．working | B．worked |
| C．to work | D．to working |
—Do you like talking with your friends on the telephone or mobile phone?
— ___________. I enjoy chatting on line.
| A．Neither | B．Either |
| C．Both | D．None |