"Mike wants to be a pilot and -----(fly)one day."

"Mike wants to be a pilot and _____(fly)one day."
老师说是"flies"(跟wants并列什么的...)
但是我觉得是fly啊...
Mile wants to be a pilot.Mike wants to fly one day.→Mike wants to be a pilot and fly one day.不行么...
我不会语法...我用语感的- -解释清晰点吧...
我会加分的...