【题目】—Why aren’t you coming back for the Spring Festival?
—We are trying to ________ the construction of houses for the earthquake-stricken areas.
A. step up B. set up
C. look up D. pick up
在线课程【答案】A
【解析】
试题分析：step up the construction of houses意为：加快住房的建设。其余三项意义分别为：建立；查找，向上看；捡起，偶尔学到。