阅读下面材料，在空白处填入适当的内容（不多于3个单词）或括号内单词的正确形式。
Do you like travelling? Staying 【小题1】 (health) while 【小题2】 (travel) can help to ensure your trip is a happy and enjoyable one. 【小题3】 you are travelling abroad, here are the tips you need to make your trip much 【小题4】 (easy)
Make sure you have got signed passport(护照) and visas. Also, before you go, fill in the emergency information page of your passport! Make two copies of your passport identification page. This will help a lot if your passport 【小题5】 (steal). Leave one copy at home with friends or relatives. Carry the other 【小题6】 you in a separate place from your passport.
Read the Public Announcements or Travel Warnings for the countries you plan to visit. Get yourself familiar with local laws and customs of the countries to 【小题7】 you are travelling.
Leave a copy of your itinerary(旅行日程) with family or friends at home so that you can be contacted in case of an emergency.
Do not accept packages from strangers. Do not carry too much money or 【小题8】(necessary) credit cards. If we make enough 【小题9】(prepare), we will succeed. Have 【小题10】 good time! healthy
网友回答
(答案→)healthy
解析：
出国旅游如何才能感到愉快：首先要健康，其次做好充分的准备，如护照和签证，还有复印2份分别放置以备不时之需，还要熟悉你要参观的国家的风俗习惯和法律法规；保持和家人的旅行联系；不要多带钱和卡，也不要接受陌生人的包裹。准备好一切，肯定能玩得开心。
【小题1】stay是系动词后面用形容词形式healthy，构成系表结构。
【小题2】travelling是动名词做主语。
【小题3】在国外旅行时，这里有一些建议以保证你的旅行更便捷。
【小题4】much后应该用比较级形式：easier。
【小题5】主句用一般将来时，if从句用一般现在时的被动形式：is stolen。
【小题6】护照复印两份，一份留在家给家人或朋友，另一份随身携带，和护照分开放。用with表伴随。
【小题7】countries是定语从句的先行词，用which代替先行词，做to的宾语。句意是：要熟悉你准备去旅行的国家的风俗习惯和法律法规。
【小题8】前有不要带太多的钱，这里应该是不必要的信用卡。unnecessary不必要的。
【小题9】充分准备是短语：make enough preparations。
【小题10】Have a good time!是固定表达：玩得愉快。