首先,动词不定式不能做宾语从句.
其次,动词不定式的基本用法：
①作宾语
I want 【to go out with you】.
They intend 【to have a party this weekend】.
②做宾语补足语
The film make me【 feel moved.】
I want to have Tom 【help me with the job】.
③目的状语
We come here 【to get more knowledge and skills】.
They started early 【to get there on time】.

The girl could visit the sick kids in the hospital to cheer them up.是目的状语,但不是状语从句；
Mario would like to be an animal doctoe.是动词不定式作宾语；
I gave away my bike to a children's home.不是动词不定式,这是介词to及其搭配的宾语.来自短语give sth away to sb

祝你开心如意!