A. How about ThursdayB. By the way, is Dr. Johnson available on SaturdayC. I'd like to make an appointment to see the doctorClerk: Good morning. This is Doctor Johnson's office. What can I do for you? Mrs. Reed: Yes, this is Mrs. Reed.【D4】______this week.Clerk: Well, let's see. I'm afraid he is fully booked on Monday and Tuesday. Mrs. Reed:【D5】______?Clerk: Sorry, but I have to say he is also occupied on Thursday. So, will Wednesday be OK for you, Mrs. Reed? Mrs. Reed: I have to work on Wednesday.【D6】______?Clerk: I'm afraid the office is closed on weekends. Mrs. Reed: Well, what about Friday?Clerk: Friday. Let me have a check. Oh, great. Dr. Johnson will be available on Friday afternoon this week. Mrs. Reed: That's fine. Thank you, I'll come then.