This is the third time you__that to me.
A.have saidB.had saidC.saidD.will say
2.Gentlemenalways shake hands when__to each other.
A.to introduceB.introducedC.introduceD.introducing
3.It was__he was ill that day__he knew nothing about the accident.
A.as;whichB.because;thatC.since;whenD.for;why
谢谢啦~~