Before you go to another country,you must know the language

Before you go to another country,you must know the language 快Before you go to another country it is a great help if you 一道英语同意句的转换Before going to another country,you shoukd know it 求翻译：Before you go to another country it is a great help if y 英语翻译Before you go to another country it is a great help if y __you want to learn another language,you must learn the word You must finish the work before you go to bed .改为同义句You __ g you must finish your homework before you go to bed You must go to see the doctor before you eat.(同义句） If you travel to another country you don’t know,can be very Befofe you go to another country it is a great help if you k I know it is necessary for you to learn another language句子成份