Circle the best answer (A,B,C or D) to complete these sentences. 1. Walking to school will help........... air pollution. A.reduce B.reuse C. recycle D. refill 2. My sisiter.......... home for school yet A.didn't leave B. hasn't left C.don't leave D. isn'tleaving 3.Amsterdam is one of the .............. cities in the world A.peacefulest B.peacefuler C.most peaceful D. more peaceful 4....................the film is late, I will wait to watch it A. because B. when C.but D.although 5. My father first........... Da Lat in 2010 A.visited B.went C.go D. been 6.If the weather............good,I..............camping with classmate A.is/will go B. is/go C. wiill be/ go D.will be/ will go 7. Which one is diffesent A. boxing B. cycling C. telling D.skiing