I regret ( ) you that I can't go to Hangzhou for a visit next Sunday with you because I've caught a bad cold.
A、
telling
B、
to tell
C、
tell
D、
having told
【正确答案】：B
【题目解析】：
我很遗憾地告诉你，下星期天我不能和你一起去杭州旅游，因为我得了重感冒。regret to do 遗憾去做某事；regret doing 遗憾做了某事。根据句意可知选B。