【单选题】He saw his friends ________ at the airport last Sunday.
【单选题】Last Sunday he made a promise______ today, but he hasnt appeared yet.
C.
he will come to see me
【判断题】用于萃取塔高计算的扩散模型, 对连续相与分散相间的轴向扩散特性,分别用不同的轴向扩散系数定量表达。
【判断题】用于萃取塔高计算的扩散模型, 对连续相与分散相间的轴向扩散特性,分别用不同的轴向扩散系数定量表达。
【单选题】Last Sunday he made a promise ________ he was free he would take me to Qingdao.
【单选题】He invited me ____________ his house last Sunday. [ ]
【单选题】Last Sunday he promised ________ today, but he hasn't appeared yet.
C.
he will come to see me