David nodded an as he entered the room. (acknowledge)
举一反三
- He had ___ entered the room _____ the phone rang .
- When I entered the room, he pretended (read) ______ a book.
- Correct the errors: No sooner he had entered the room than the telephone rang.
- Mr. Johnson began to work the ______ he entered the room. A: place B: way C: moment
- It was very dark. So he _______ the lights as soon as he entered the room. A: turned on B: turned off C: turns on D: turns off