Whenthesickmothergotup,shewassurprisedtofindthathersix-...

问题详情：

When the sick mother got up,she was surprised to find that her six-year-old daughter ____________in the kitchen．

A．had cooked    B．has cooked    C．was cooking   D．cooked

【回答】

C

知识点：过去进行时及其被动式

题型：选择题