The medicine is on sale everywhere. You can get it at _______ chemist's.
I’ve no idea. I just pretended nobody was at home, so I didn’t ask who _______ was.
I dislike _______ when others laugh at me in public or think poorly of me behind.
Everyone knows that _______ is dangerous to play with fire, but _______ is difficult is to prevent children from playing with fire.
. ------Don’t put the waste on the ground. ------Oh, I’m very sorry. I ____ the dustbin there.
------When can I see you, Mr Black? Three o’clock this afternoon?------Oh, no. I _____ a meeting then.