问题描述:
根据上下文和首字母的提示补全单词.(快!
Doyouknoww____inthecoffeemakesourbodiesandbrainsactive?It'sc____.Caffeinemayincreaseaperson'smentalandphysicalabilities.Fore____,twocupsofcoffeewillm____youbreathefasterandaugmentyourbobyheat.Allthismakesyourheartbeatfaster,anddoctorwarnthatthismaybealittled____.Caffeineisfoundintea,coffee,chocolateandsomeo____foods.Alittlecaffeineism____notharmful.Buttoom____caffeinecanmakepeoplenervousandsleepless.