. 9.If Hoa had a rain coat , she………………… A.didn’t catch a cold. B.would have caught a cold. C.wouldn’t catch a cold. D.wouldn’t have caught a cold. 10.A new bridge…………………... valuable C. forest D. protect 11. A. establish B. butterfly C. orphanage D. national 12. A. variety B. recognize C. contaminate D. abandoned 13. A. expensive...