题干
What does Lily want to do with Dave this evening?
A：To watch the basketball game
B：To play in the park．
C：Tb play basketball．
答案(点此获取答案解析）
A
What does Lily want to do with Dave this evening?
A：To watch the basketball game
B：To play in the park．
C：Tb play basketball．
，请你写出一个二元一次方程，使它与已知方程所组成的方程组的解为 
．
