—Hello, I’d like to see Doctor Smith at 3 o’clock tomorrow afternoon.
—Sorry, but he ________ a patient at that time.
| A. will operate on | B. will be operating on |
| C. will have operated on | D. will have been operated on |
—Hello, I’d like to see Doctor Smith at 3 o’clock tomorrow afternoon.
—Sorry, but he ________ a patient at that time.
| A. will operate on | B. will be operating on |
| C. will have operated on | D. will have been operated on |
B