______the truth, he wouldnt have lent her any money.A．Jack has knownB．If Jack knownC．Shoul

He won the scholarship. He ______ hard these terms.A．should have workedB．must have workedC

If you told the truth to your principal, he ______ able to give you much better suggestion

When I asked him if he had ever cheated in exams he said he wouldnt______himself like that

I have doubts_____everyone present has about_____he is telling the truth.A．why, ifB．that,

He couldnt______his father that he was telling the truth.A．guaranteeB．ensureC．convinceD．pe

Being aware that Jack was dishonest the teacher demanded he _____ nothing but the truth.