【推荐1】These days students __________ (bury) in their old lessons and preparing for the coming exam. (所给词的适当形式填空)

【推荐2】According to the timetable, the train for Beijing ________(leave) at four this afternoon, so I ________(leave) for the station at 1:00 p.m. (所给词的适当形式填空)

【推荐3】More than one person _________(be) against the proposal. （所给词的适当形式填空）

【推荐1】It was a long time _________ he knew the full result. (用适当的词填空)

【推荐2】Ecotourism has its origin with the environmental movement of the 1970s. It was not widely accepted as a travel concept ________ the late 1980s. During that time, increasing environmental awareness made it desirable. （用适当的词填空）

【推荐3】It is believed _______our education is geared towards preparing us for a life of work.（用适当的词填空）