choose the best answer to complete the sentences. 1.traffic accidents can be prevented if people.....the rules. A.remember B.obey C.go after D.take care of 2.I......go on foot when I was in primary school A.have to B.may C.can D.used to 3........the story of the film was good,I did'n like the acting A.because B.although C.as D.since 4.I firts.......Melbourne in 2003 A.visited B.have been C.have gone D.went 5.I love the.......of folk songs A.perform B.performing C.performed D.performance 6.It must be.....to see elephants racing A.amaze B.amazed C.amazing D.amazement