新概念3题目P17 People said ____the puma.(a)to have seen(b)to see(

People said to have seen the puma.这句话语法上对吗? -goodbye!i'm glad_you -_too!A to see,I B to have seen,meC to he claimed to have seen the puma .to have seen这不定式做啥成分. Goodbye!Im glad to have seen you.怎么回答?A,me too .B,see you la see to ____the children don't catch cold.a.it what b.it that ___that it was going to rain,he hurried home.A.to see B.seen to see & to be seen I regretted —— that to her.A.having said B.to have said C to I went to see a film on Sunday and Monday,so I have seen it 新概念3中第一课 A puma at large中,HAVE的用法疑惑 There __no life on the moon.A.is said to have B are said to He denied ___ these watches before.A.to see.B.seen.C.seeing.