https://reurl.cc/5r6mVz
I made a call to Mr. Shepherd who had gone to Shanghai since last week. = I
made a call to Mr. Shepherd having gone to Shanghai since last week.
https://reurl.cc/9rjlxV
Amy, who was punished for talking in class, received a detention form.
(形容词子句)
= Amy, being punished for talking in class, received a detention form.
= Amy, punished for talking in class, received a detention form.
https://twenglishstudy1.pixnet.net/blog/post/355703894