Future will be a marvelous world of artificial ______—–robots might have their emotions and we human beings might have robots asfriends

routine office meeting, the headmaster insisted that the problems _______ paid special attention to.

I don’t doubt that the price of thered apples is higher than___________ of the yellow__________ in this area.

Gun control is a subject _______ Americans have argued for a long time.

I wanted to buy a storybook butthere were______ left in that bookstore．