I’m so glad I didn’t agree it, otherwise it would have got me into serious trouble.
A. having done
B. to do
C. doing
D. to have done
网友回答
A. having done
(答案→)B. to do
C. doing
D. to have done
解析：本题考查动词用法。agree to do sth同意做某事。句意：我很高兴我没有同意它，否则它将给我带来严重的麻烦。