Do you know the reason_____she didn’t attend her boyfriend’s birthday party yesterday?A.whyB.whichC.for thatD.for why
参考答案:
The reason__________ their failure you know is _____they did..
The reason__________ their failure you know is _____they didn't get fully prepared for the experiment.A.why.., thatB.that.., whyC.for.., thatD.why.., because