题目

______, he couldn’t get the door open.     A. Might as he try   B. As he might try  C.Try as might try     D.Try as he might 答案： 【解析】D考查as构成的让步状语从句。用法为“谓语动词+as+主语+情态动词”某人血液当中若红细胞或血红蛋白数量过少，此人可能患（ ） A. 贫血 B. 炎症 C. 干眼症 D. 夜盲症