Unit 4Then and now,Part B第四课时,一、单项选择。 ()1.Wu Yifan ran _a cheetah. Aon Blike Cin ()2.There _a race under the tree. Ahave Bis Care,B,B,3.Mary _ short.Now she _ 1.6 metres tall. Ais;was Bwas;is Cis;is ()4.There _ many trees and there were many clean rivers before. Aare Bwas Cwere,B,C,二、选词填空。 Before I didnt like 1._.It was too cold.I couldnt 2._ badminton outside.I couldnt go 3._.I liked summer.I 4._ swimming. But now I love winter.I ca