When we were young, every evening we ____ stay at home waiting for our mother. [ ]

A. would

B. might

C. should

D. could

调查某市工业企业职工的工种、工龄、文化程度、技术等情况（）。

A、填报单位是每个职工

B、调查单位是每个企业

C、调查单位和填报单位都是企业

D、调查单位是每个职工，填报单位是每个企业