这些是啥用法,过去分词做状语和现在分词做状语有何区别啊啊啊.1____aboutthestudent,theteachercalledhisparentstofindoutwhyhewassoabsent-mindedinclass.[A]A.ConcernedB.ConcernsC.ConcerningD.Concern2（Basin

　　这些是啥用法,过去分词做状语和现在分词做状语有何区别啊啊啊.

　　1____aboutthestudent,theteachercalledhisparentstofindoutwhyhewassoabsent-mindedinclass.

　　[A]

　　A.Concerned

　　B.Concerns

　　C.Concerning

　　D.Concern

　　2（Basing）animportantdecisionmoreonemotionthanonereason,youwillregretitsoonerorlater.

　　3.

　　Withourknowledge________practice,wecanmakecontributionstooursociety.

　　[C]

　　A．tobaseon

　　B．basingon

　　C．basedon

　　D．baseon

　　4.Allflights（havingbeencanceled）becauseofthesnowstorm,wedecidedtotakethetrain

　　5.（Designed）verycleverlytofitintocorners,theshelfdoesn'ttakeupmuchroom.

　　6.Theboydoesn'tworkhardenoughathislesson.Asforhisintelligence,hehas_morethan__hecanpossiblymakeuseof.（此句求翻译……）