he was just going to leave the restaurant when another traveler came in.这是时间状语从句还是并列句,到底怎么区分,呀,

he was just going to leave the restaurant when another traveler came in.这是时间状语从句还是并列句,到底怎么区分,呀,
he was just going to leave the restaurant when another traveler came in.这是时间状语从句
还是并列句,到底怎么区分,呀,

he was just going to leave the restaurant when another traveler came in.这是时间状语从句还是并列句,到底怎么区分,呀,
是when引导的,典型的时间状语从句!
状语,通常是在句子中的时间、地点、方式、程度、等的成分,状语在英语中可以说是最复杂的句子成份.即把状语部分去掉,整个句子的意思还是完整的,但细节可能不够.
主句是：He was .restaurant 他将（过去式的将）要离开那饭馆.（这肯定是个完整的句子）
从句：when...到完.(另外一个旅客进来的时候）
但是状语也好分,就是中文的句子状语,基本也就是英语句子中的状语.
有问题再问.