练习题 一、选不同类单词 1.A.pleaseB.pencilC.paper 2.A.dangerousB.safeC.sidewalk 3.A.teachB.cookC.vet 4.A.soundB.streetC.shop 5.A.findB.farmerC.use 二、选择题 1.Do you have a knife? A. Yes, I don’t. B. No, I don’t. C. Yes, I am. 2.A:Can I use your pen, please? B:Sure _________ A. Here you are...
