1.He came in,_____by his secretary came in.A.followed B.bein

1.He came in,_____by his secretary came in.A.followed B.being followed
2.______ not to miss the flight at 15:20.
The manager set out for the airport in a hurry.
A.Reminded B.Having been reminded
3.______ many times,he finally understood it.
A.Having been told B.Told
过去分词作状语,现在分词的被动式及完成式作状语的区别