–Did you go to Qingdao for vacation last summer? --I______ to go, but I got sick at the last minute. A. planned B. was planning C. had been planning D. have planned 答案:Cplan这一动作在got sick之前发生,且表示那一段时间一直在计划,因此选用过去完成进行时。 如图,在直角△ABC中,∠ACB=90°,∠A=15°,CD⊥AB于D,AC边的垂直平分线交AB于E,那么AE:ED等于( )
A、1:1B、1:2C、3:2D、2:3