| 1. 难度：中等 | |
|
Jim is _______ 11-year-old boy, and he plays _______ piano quite well. A. a; the B. an; / C. an; the D. a; /
|
|
| 2. 难度：中等 | |
|
一Mary, is this _______ruler? 一No, _________ is in the pencil case. A. yours; my B. your; mine C. your; my D. yours; mine
|
|
