______, he couldn' t earn enough to support the family.
【正确答案】 A
【答案解析】as引导让步状语从句时,意为“虽然,尽管”,通常从句要倒装,即将从句的表语或状语提至as之前,构成“表语/状语+as+主语+谓语”结构。故选A。