You are never too young _____ doing things.[ ]

We can’t live _____ air _____ water. [ ]

Alice was ill, so her mother________ her at home.

The postcards often remind me _____ my old friends. [ ]

Why is Jim not happy these days?—Because he is busy every day. He gets ______ school at 6:40 am and gets ______ home at 5:00 pm.[ ]