Read the following article and select the best answer. Article: Mr. Brad wants to see a film. After lunch, he goes to a cinema, buys a ticket and goes in. But after two or three minutes he comes out again and buys a second ticket and then walks in again. After a few minutes he comes out again and buys a third ticket. Two or three minutes after that, he comes out a third time and asks for another ticket. But the girl says to him, "Why are you buying all these tickets? Are you meeting your friends in the cinema all the time?" "No, I'm not doing that." Mr. Brad says, "But a big woman always stops me at the gate of the cinema and she tears all my tickets." The girl has a good laugh and says, "One ticket is enough. She is on duty." Question: Mr. Brad comes out of the cinema _ . - once - twice - three times - four times
three times