The determined mother has devoted all she has to ________ her son out of trouble.

It is often said that home is _______ the heart is and now part of my heart is with my new classmates.

This song sounds _______ , I like it.

I wanted to buy a copy of The Youth, but there was_______ left in the bookshop. _______has just bought the last one.

下列各句中，画线的成语使用不恰当的一句是  (    )