Laws that punish parents for their little children’s actions against the laws get parents_______.
Future will be a marvelous world of artificial ______----- robots might have their emotions and we human beings might have robots as friends.
As second-hand smoking is more harmful and dangerous, people want a total _____against smoking in public.
-- I didn't realize how popular the restaurant was until I made a reservation the other day.-- I beg your pardon, but when __________?
It_____ have been Tom that parked the car here, as he is the only one with a car.
-- Do you think it's a good idea to make friends with your students?-- ______, I do. I think it's a great idea.