请高手帮忙解答两道英语题
36帮忙翻译：Mr smith said that he would delay introducing the scheme because of the demandsmade on teathers by other educational reforms.
40.The witness claimed____a man outside the house,but he was not sure whether this was the man.
A.to see B.to have seenC.that he sawD.that he has seen
选B.D错哪了