Question

Mike is believed __ very lovely when he was young

Mike is believed __ very lovely when he was young
A. to have been B. to be
答案是B 想问下A为什么不能选

Answer 1

选A不对因为状语是when he was very young. 当他年轻的时候。to have been 是现在完成时，时间点是矛盾的。如果状语改成：since childhood.自打儿时起，意味着到现在依然可爱， 那么可以是A。