单选题 The writer was so ______ in his writing that he forgot to flick the ashes from his cigar.
【正确答案】 C
【答案解析】本题测试固定搭配。be absorbed in意为“专注于…”。本句大意为：这个作家如此专注于写作以至于忘了弹去雪茄的烟灰。