题目内容：

根据句意，用括号中所给词的适当形式填空。（每小题1分，共5分）

1.Mike goes to see his grandparents _________ (one) a week.

2.Exercise is  ______  (health) for the mind and the body.

3.This flower is _____ (good) than that one.

4.Which city is ____________ (beautiful),Beijing,Shanghai or Hangzhou?

5.We ____________ (not have) enough money to buy food last night.