這些是啥用法,過去分詞做狀語和現(xiàn)在分詞做狀語有何區(qū)別啊啊啊.
1____ about the student,the teacher called his parents to find out why he was so absent-minded in class.
[ A ]
A.Concerned
B.Concerns
C.Concerning
D.Concern
2（Basing ）an important decision more on emotion than one reason,you will regret it sooner or later.
3.
With our knowledge ________ practice,we can make contributions to our society.
[ C ]
A．to base on
B．basing on
C．based on
D．base on
4.All flights （having been canceled） because of the snowstorm,we decided to take the train
5.（Designed） very cleverly to fit into corners,the shelf doesn't take up much room.
6.The boy doesn't work hard enough at his lesson.As for his intelligence,he has _more than__ he can possibly make use of.（此句求翻譯……）