He did all he could to but nobody noticed him.
A. draw people’s attention
B. focus his attention
C. draw attention to
D. pay attention
网友回答
(答案→)A. draw people’s attention
B. focus his attention
C. draw attention to
D. pay attention
解析：考查固定词组.draw one’s attention引起某人的注意；focus one’s attention集中某人的注意力；pay attention to注意…；本题横线后面没有宾语，故不应该有介词to;句意：他做了所有他能做的来引起人们的注意，但是没有人注意到他。根据句意说明A正确。