根据汉语意思完成句子。
【小题1】Doing more exercise like running helps to build up (增强)our body.
【小题2】All of us should give up (戒除) smoking.
【小题3】I want go be a doctor in the future (将来)
【小题4】Mum, don’t (担心)worry about me. I’ll take good care of myself.
【小题5】Why don’t you lie down build up （躺下）？
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解析：
【小题1】根据句意和汉语提示：象跑步这样的锻炼有助于增强身体：增强：build up
【小题2】考查词组：戒除：give up
【小题3】根据句意和汉语：将来：in the future
【小题4】根据句意和汉语：担心：worry about
【小题5】考查词组：躺下：lie down