Jude, seated in a chair and lost in thought, gave me a sudden look, as if , “Are you kiddi

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(答案→)A. to say
B. to have said
C. said
D. to be saying
解析：as if to say “好像要说”，与gave me a sudden look语境相符。as if to have said “好像已经说了”，as if said  “好像已经被说了”，要表达“好像在说”应用as if saying 而不是as if to be saying。