2.His whole mind was trying out the experiment.
3.He is head over heels in his English study.
4.They were hung up on winning.
5.He set his heart on becoming a composer.
6.Tom has put his heart and soul into passing his examinations.
7.Without it, we would find it impossible to work together with one heart and one mind for the realization of our goals.
8.Whatever you do, do with all your might.
9.The boy has the presidential bee in his bonnet.
10.He is bent on mastering Spanish.