为什么是How was your last school trip而不是How were your last schoo

为什么是How was your last school trip而不是How were your last schoo 英语作文：how was your last school trip How was your trip toYancheng last week? How was your trip last week的翻译是多少 同义句 ..How was your school trip? how was your school trip 〉 How was your trip? 用was/last weekend/your/how怎么.. How was your last summer holiday How was your last summer holiday中文 “When was your last trip? when was your last trip?这个地方为什么不用were用was