—My grandfather was ill in hospital last week.—.A. I dont think so. B. Im sorry to hear

问题补充：

—My grandfather was ill in hospital last week.

—.

A. I don think so. B. Im sorry to hear that.C. That’s a good idea

答案：

解析：考查点：习惯用语的考查。I don think so.“我不这样认为”。Im sorry to hear that.“听到这个消息我很难过”。That’s a good idea. “是个好主意”。句意为：我的也有上周生病住院了。听到这个消息我很难过。