What did he do when he heard a knock at the doorHe______ he was answering a phone call from a client.
举一反三
- When he heard the knock at the door, Frank probably thought ___________.
- ______ that is most important. A: It is what did he do B: It is what he do C: It is what he really has done D: It is only he did
- While he the letter, he heard a knock at the door.
- What did Jim do to make friends when he was in university?
- He ______ worried when he heard the news. A: is B: was C: does D: did