This system could deliver services to local communities more______.(effective,effectively) 2.His comments sparked an angry______from dissatisfied customers.(respond,response) 3.Checks are made to______whether applicants have a criminal record.(discover,discovery) 4.If any of these symptoms______while you are taking the medicine,consult your doctor immediately.(occur,occurrence) 5.The museum is full of______and precious treasures.(rare,rarely) 6.Do you agree with the use of animals in______experiments?(science,scientific)