____________Itake the book out—I’mafraid not

Oh, boy, why are you killing yourtime this way? Can’t you find something _____ doing? [ ]

It took him a long time to ________ the skills he needed to become a professional artist.[ ]

Let me help you to carry the box. —No, thanks. I can do it by _______.

st _______ when I make adeep breath, doctor