Chairman Mao to be unforgettable in the hearts of the Chinese people.
A. proved
B. regarded
C. thought
D. considered
网友回答
(答案→)A. proved
B. regarded
C. thought
D. considered
解析：consider sb.to be “认为某人是……”，或be considered/thought to be“被认为是……”;regard sb.as“把……当作……”。从形式搭配上来看B、C、D三项都不正确。prove是连系动词，后面可以接to be +adj.或直接接n.。