4、edherchildrenwhentheywerecleaningtheoldhouse.A.PickupB.PickoutC.PickfromD.Pickoff18.Acomputerdoesonlywhatthinkingpeople______.A.haveitdo B.haveitdoneC.havedoneit D.havingitdone19.______totakethisadventurecoursewillcertainlylearnalotofusefulskills.A.Braveenoughstudents B.