on a shool trip呢

on a shool trip呢 the students had a great shool trip (改写同义句） the students _ _ on their shool trip We had a good time on the shool trip(改为否定句） I had a pleasant shool trip last weekend on a school trip on a trip还是IN A TRIP 选择题:we need help____our shool trip. 答案A. with 答案B.for be on a business trip go on a trip 造句 go on a picnic等于have a picnic,have a trip等于take a trip那么可不可以说take a tpicnic或go on a trip?这里go on,have,take都是什么词呢? 是on a field trip,还是 in a field trip on a trip, in a trip之间有什么区别? on a business trip 中business什么词性business是名词呢么 on a business trip（介词+冠词+名词+名词）很奇怪 mr.white,with his friends IS/ARE on a trip.是is 还是are?为什么呢？ go on a visit to和go on a tour of有什么区别.另外,有go for a trip to么,这个跟别的又有什么区别呢.RT.那或者是go on a trip to呢. Gogo went on a trip last go on a trip to the Canada went on a trip是不是一个地点?