Muchtime

问题详情：

Much time ___（spend）sitting at a desk, office workers are generally troubled by health problems.

【回答】

spent  考查分词的*主格结构。spend的逻辑主语是time，二者是被动的关系，所以用过去分词，表示被动

知识点：语法填空

题型：单词拼写