It is only your heart is really in it you can play your best.A. that; thatB. that; whenC

问题补充：

It is only your heart is really in it you can play your best.

A. that; that

B. that; when

C. when; that

D. when; when

答案：

A. that; that

B. that; when

(答案→)C. when; that

D. when; when

解析：强调句型it is +被强调部分 + that…，此题强调when引导的时间状语从句。只有当你全心身做一件事情你才能把事情做好。 选C