1. i had to ask the boys ................... .................... billiards all the day A. to stop / playing B. to stop / to play C. stopping / playing D. stops / to play 2. don't .................. in class , students ! A. talking B. to talk C. talk D.talked 3. he reminded me ................. to give the book back to John A. not forget B. not to forget C. forgot D. forgetting 4. i don't allow my family .................. at all A. smoking B. to smoke C. smoked D. smoke