7、ewasteinanewway.A.usedtodumpB.isusedtodumpC.usedtodumpingD.isusedtodumping()4. ---Haveyouevertraveledabroad?---sure,I_____inasmalltownintheUSAwithmygrandmother.A.usedtoliveB.wasusedtoliveC.didn’tusetoliveD.wasusedtoliving()5. The knife is _______bread. A. used to cut B
8、. used to cutting C. use to cut D. used for cut ()6.We _____in this pool when we were young, but now it ___