Read and listen to four conversations using the grammar.
Man: Are you coming to the party?
Woman: Yes, I'm going unless I get stuck at work.
Man: Really! You might have to work.
Woman: Maybe, but I'll call you if I can't make it.
Man: Well, I really hope you can make it.
Woman: Me too! As long as we don't get too busy, I should make it, though.
Woman: Yes, Mr Smith, you want to see me?
Man: Yes, We need to talk about your grades. I'm worried that you won't pass the class unless you start doing better on your assignments.
Woman: Well, if I get an A on the test, can I pass the class?
Man: Yes, I think so, as long as you do all your homework assignments.
Woman: OK. I'll make sure I do better, and I'll study hard for the next exam.
Man: I hope so, because if you don't, you'll have to take the class again.
Man: Can I use the conference room tomorrow?
Woman: Sure, as long as it is not booked.
Man: What should I do if it is?
Woman: If it's booked, you can use the lecture hall.
Man: Oh, that is too big I think.
Woman: Well, the conference room might be free. I'll check and let you know if it is. If it isn't, what should I do?
Man: If it's booked, then I will wait until it is free. The lecture hall is too big.
Woman: OK, I'll get back to you soon.
Man: Great. Thanks.
Man: Are we still playing soccer tomorrow?
Woman: Yes, I hope so. We'll play as long as the weather's nice.
Man: Will we play if it rains?
Woman: If the rain is not too heavy, we will play.
Man: OK, and if it is?
Woman: If it is, I'll check with the others and let you know if we cancel the game.
Man: Sounds good. Thanks.
