单选题 It was in that small room ______ they worked hard and dreamed of better days to come.

【正确答案】 D
【答案解析】强调句型。判断强调句型的方法是:去掉It was...that之后,句子的主谓结构仍完整,就是强调句型。本句去掉后就得到“in that small room they worked hard...”,句子仍然完整。