Mr. Smith is a teacher. His office is not far 1his home, but he always 2to work every day. Mr. Smith likes his car very much, so he often 3his car and he uses a lot of water 4it. He tells Mrs. Smith, "I must keep my car 5." Mrs. Smith says to Mr. Smith, "You shouldn't wash your car too often. You shouldn't 6too much water. "Mrs. Smith goes shopping every day. She goes to the shopping centre 7. She likes walking. She thinks it's 8for her health（健康）。
