Unit 12 Section B (3a—self-check)

Unit12SectionB(3a—self-check)一、选择填空题()1.It__________sunnytoday,butit__________cloudyyesterday.A.is,isB.was,wasC.is,wasD.was,is()2.I___________atschoolnow,butI_________athomeanhourago.A.am,a...