They will call us as soon as they ______ there.
-- What time do you expect me back, Mum? -- Say, ______half an hour.
It’s nice of you to ______ so much time showing me around your school.
-- I need something for cutting the paper. -- Oh, you want a knife? OK, I’ll get ______ for you.
I couldn’t get through the door because there was a big box ______.
-- Excuse me. May I use your eraser, please? -- Sure. ______