---How do you learn English so well ?
---_______ chatting with my uncle in the USA.
A. for B. By C. In D. With
_______ they are twin brothers, they don’t look like each other.
| A．Though | B．Since | C．However | D．When |
The customers are pleased with the________of the restaurant.
| A．balance | B．experience | C．surface | D．service |
Mr. Black is strongly _______keeping animals in the zoo, because he thinks animals should also have the right to enjoy freedom.
| A．up | B．for | C．against | D．down |
The number of the students in our school is about nine ____. ____ of them are boys.
| A．hundred; Two thirds | B．hundred; Two third |
| C．hundreds ; Two thirds | D．hundreds; Two third |
—Do you think yesterday’s math problem was difficult?
—Yes. I could ________ work it out.
| A．hardly | B．easily | C．finally | D．nearly |