问题补充：
------Your grandpa had a bad cold last week.
------.
A. It’s my pleasure.
B. I don’t think so.
C. I’d love to.
D. I’m sorry to hear that.
答案：
A. It’s my pleasure.
B. I don’t think so.
C. I’d love to.
(答案→)D. I’m sorry to hear that.
解析：A. It’s my pleasure. 我的荣幸，别客气 B.I don’t think so.我认为不是这样 C. I’d love to.我非常乐意D. I’m sorry to hear that. 听到这个真难过；句意：你的爷爷上周感冒了。听到这个真难过。故选D
