B. Fill in each blank with the appropriate form of an idiomatic expression from this unit only. Mara: Where's the store clerk? Ted: I don't know. It's taking him too long to (1) _______________ us. Mara: I don't like the service in this store (2) _______________. I feel like leaving right now. Ted: Oh, no, let's not do that. How many dresses have you tried on (3) ______________? Mara: Oh, I've tried on about eight dresses. Ted: Well, after all that time and effort, you should buy (4) __________________ one, don't you think? Mara: No, never mind. I'm so upset that I need to (5) _____________________ outside in the fresh air. Ted: Mara, I think that you're making the wrong decision. You should (6) __________ it (7) ___________ first. This is really a nice dress at a great price. Mara: Well ... I guess a few more minutes of waiting won't make a difference.