根据下列句子及所给汉语提示，写出空缺处各单词的正确形式。（每空只写一词）
1）He has (增加体重) since I last saw him.
2）He left his office job to try to (谋生) on the land.
3）Bryson decided to quit (而不是) accept the new rules.
4）In winter, the town is often （切断联系）by snow.1）put on weight
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(答案→)1）put on weight
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