用所给词的适当形式填空，使句意完整、正确。(5分)
（1）--What’s the weather like today? -- It’s ___________(sun).
（2） It is ______________(rain) today.
（3） Which season do you like_____(good), spring or winter?
（4） I often go ________ with my friends in winter. (skate)
（5） How many _____________ (season) are there in a year?