1) ......... the films is ate, I will wait to watch it. (Because/ When/ But/ Although) 2) My father first ......... Da Lat in 2012. (go/ wnet/ visited/ been) 3) Walking to school will will help ...... air pollution. (reduce/ reuse/ recucle/ refill) 4) My sister ........ home for school yet. (didn't leave/ don't leave/ hasn't left/ isn't leaving) CẦN GẤP NHA!!!

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