问题描述：
改错
1.Is your watch made from gold?
2.A knock at the door was interrupted him.
3.He is not possible to get there on foot before 5.
4.If it will rain tomorrow,I shall take an umbrella with me.
1.Is your watch made from gold?
2.A knock at the door was interrupted him.
3.He is not possible to get there on foot before 5.
4.If it will rain tomorrow,I shall take an umbrella with me.
问题解答：
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