Are you going to buy a camera? —–Yes. But there are so many kinds that I can’t decide __________ to buy.

He told us that he was tired and thirsty because he ________ in the desert for days.

What did you do ________ ? —I went to the movies.[ ]

I haven’t got an armchair_________. Will you make room for me?

you know the teacher ______ long hair?