He had little idea that it was getting so late, ___________ ?
—Is the dentist at work? —I'm sorry to tell you he is on __________.
—Peter's rarely ill,__________ he? —__________. He is quite healthy.
The Smiths felt __________ about their daughter who had gone to the clinic for three hours.
—I'm leaving for the doctor's this afternoon. —OK, but make sure __________ when you leave.
The patient hasn't got a fever. In other words, his temperature is __________.