改写病句：WhiledrivingonBlueberryAvenueyesterdayafternoon,atreefelltowardJack
Lookatthisgroupofpeople______beachvolleyball.
Theprofessoraskedaquestion,andDavid________agoodanswer.
Theteachergave_____theexaminationpaper.
Thesuspectcooperatedfullywiththepolicewhen______abouthisroleintheincident.
