中国大学MOOC: I’m sorry that I must (be) out all the cards at the moment.
举一反三
- I'm sorry, I ______ be out at the moment. A: may B: could C: can D: must
- 中国大学MOOC: I’m sorry to __________ you, but I’m afraid we are running out of time.
- Receptionist: Which department ______ in, please? Customer: He’s in the sales department. Receptionist: One moment, please … I’m sorry, ________ at his desk at the moment. Can I take a message?
- 中国大学MOOC: I’m sorry, but I have to _____ in here.
- I’m sorry I can’t ( ) the meeting tomorrow; I’m out of the office all day. A: attend B: leave C: miss D: remember