-do you know _____ the smiths left last monday?-i am not sure.i only remember they left on a c...-do you know _____ the smiths left last monday?-i am not sure.i only remember they left on a cold afternoon.A.when B.what C.whether D.how

-do you know _____ the smiths left last monday?-i am not sure.i only remember they left on a c...-do you know _____ the smiths left last monday?-i am not sure.i only remember they left on a cold afternoon.A.when B.what C.whether D.how
-do you know _____ the smiths left last monday?-i am not sure.i only remember they left on a c...
-do you know _____ the smiths left last monday?
-i am not sure.i only remember they left on a cold afternoon.
A.when B.what C.whether D.how

-do you know _____ the smiths left last monday?-i am not sure.i only remember they left on a c...-do you know _____ the smiths left last monday?-i am not sure.i only remember they left on a cold afternoon.A.when B.what C.whether D.how
选A
解析：on a cold afternoon很明显是表示时间,所以应用when 什么时候
翻译：你知道史密斯一家上个周一是什么时候离开的吗?————我不确定,我只记得他们离开在一个寒冷的下午

A

A 意思很清楚 你知道史密斯一家人上周一 “啥时候”走的吗？
我不大清楚。我只记得他们在某个寒冷下午走的

答案是C，“是否”的意思
题面最后提到了 last monday，所以表示提问者是知道大概时间的但就是不确定
HOW是对离开的方式进行提问，跟回答者的对话不符合
what就完全不符合题意了·