帮我做下这几道英语题(补全单词)1.If you want to win in this c_____,you must work harder.2.you shoud think carefully b_____you make a decision.3.I'm very glad to s_____you around our school.

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帮我做下这几道英语题(补全单词)
1.If you want to win in this c_____,you must work harder.
2.you shoud think carefully b_____you make a decision.
3.I'm very glad to s_____you around our school.

1 win competition 竞赛取得胜利
2 before think before you do 三思而后行
3 show show sb around 表示带你参观