He made a living ______ doing some important things. [ ]

Do you know where the movie star is ________? —Oh, he is making a movie in Shanghai.[ ]

Why are you so tired these days?—Well, I have ________ homework to do.

Jack, when shall we go to visit Mr. Smith? – It’s up to him. We’ll go to see him whenever _______.

There are different kinds of presents in the gift shop. I can’t decide _______.