A. We are ready at your serviceB. The computer is workingC. it provides you with free service and partsA: There! Here we are. You can turn on the power now.B: Great!【D1】______ . Thank you very much.A: It's our pleasure. By the way, your warranty is good, so【D2】______ . You just sign your name here in the form. B: Thank you. May I sign here? A: Yes. If anything is wrong with your computer, don't hesitate a moment to call us.【D3】______B: I appreciate your coming here in time.