1.(2014·重庆,12)—is it true that mike refused an offer from yale university yesterday? —yeah, but i have no idea ________ he did it;that's one of his favorite universities. 答案 why [句意:——迈克昨天拒绝了耶鲁大学的录取通知是真的吗?——是的,但我不知道他这么做的原因,耶鲁大学是他最喜爱的大学之一。根据后面的that's one of his favorite universities可知这里指原因,故用why引