【单选题】He promised that he would work well, and he didn't________. [ ]
【单选题】二手车经营转换是否属于汽车后市场的范畴?
【单选题】在数字信道中,表示信道传输能力的指标是( )。
【单选题】He said he would give me the money, but he ________ hasn’t given it to me.
【单选题】56 He eame to the meeting______his serious illness.
【单选题】What ______ me most was not what he told me but why he looked at me in _______ all the time.
【单选题】Henry Manley had no idea at all why George wanted to see him.