A.recycled B.about C.reused D.holiday E.cheapest F.if G.vacation H.fastest I.whether J.of
76.The / way to get there is by coach?
77.My family went to Hainan on / last year.
78.At green school,every class collects waste which can be / .
79.What do you think / my new shoes?
80.Could you tell me / you're going to come?