问题补充：
My computer is in good and you can enjoy yourself on it.
A. instruction
B. position
C. condition
D. situation
答案：
A. instruction
B. position
(答案→)C. condition
D. situation
解析：instruction指示,用法,指令；position位置；condition条件,状况；situation情形,境遇。这里指的是计算机状况良好。
