In 1981 children in the United States spent an average of slightly less than two and a half hours a week doing household chores; by 1997 they had spent nearly six hours a week.
In 1981 children in the United States spent an average of slightly less than two and a half hours a week doing household chores; by 1997 they had spent nearly six hours a week.
Achores; by 1997 they had spent nearly six hours a week 分析A选项
Bchores; by 1997 that figure had grown to nearly six hours a week 分析B选项
Cchores, whereas nearly six hours a week were spent in 1997 分析C选项
Dchores, compared with a figure of nearly six hours a week in 1997 分析D选项
Echores, that figure growing to nearly six hours a week in 1997 分析E选项
补语只有两种:
1.主语补足语,这个明显不是
2. 宾语补足语,这句话的宾语是less than two and a half hours a week,核心逻辑意思是“一段时间”。that figure growing to nearly six hours a week in 1997. 我spend的是“一段时间”还是“a figure”?如果E用的是a duration之类的也许还可以考虑,用a figure必错。