【单选题】He got used to _______ earlier in summer.
【单选题】用 标准 齿条形刀具 范 成加工标准齿轮时, 关于 根切产生原因 叙述错误的 是 _______ 。
【单选题】— To my disappointment, the experiment was ______ complete failure. — Don't lost ______ heart, John. Failure is the mother of success. [ ]
【单选题】My father used _______in front of his house and he got used to _______like that.
【单选题】I don' t believe such a strange story. I am certain it is a complete______.
【单选题】Gates didn’t complete university.