We are supposed to ___________a solution to stop people from looking down at their mobile phones while driving cars.

Are you fond of watching TV?— Not a bitI would sit alone in the dark _______ I would watch TV

If you don’t go to the theatre tomorrow, ________.[ ]

Who is the old man talking with your teacher? —I don’t knowI him before

Mario used to be short, didn’t he—________. But now he is tall.