She learned to play ___ piano all by herself.
| A | a |
| B | an |
| C | the |
| D | 不填 |
___ are planning to go on vacation.
| A | Black's |
| B | A Black's |
| C | The Black's |
| D | The Blacks |
-Is ___ magazine yours, Joe？
-No, I don't have ___ magazine.
| A | a; a |
| B | the; the |
| C | the; a |
Susan joined an art club at ___ age of six and paints well.
| A | the |
| B | an |
| C | a |
The young man plays ___ violin very well, but he plays basketball badly.
| A | an |
| B | / |
| C | a |
| D | the |