―Hello! May I speak to Jack, please?
―Yes, speaking.
―Oh, I _________ your voice at first.
| A．don’t recognize | B．didn’t |
| C．hadn’t recognized | D．haven’t recognized |
As we joined the big crowd I got _____ from my friends.
| A．separated | B．spared | C．lost | D．missed |
Scientists have many theories about how the universeinto being.
| A．came | B．was coming | C．had come | D．would come |
Mr. Leea plan to reduce water pollution, which all the people present at the meeting thought highly of.
| A．put off | B．put on | C．put forward | D．put away |
—I think he is taking an active part in social work.
—I agree with you .
| A．in a way | B．on the way | C．by the way | D．in the way |
Will you please write the words ________ ? I mean you write them on the first line and then the third line and so on.
| A．every third line | B．every second lines |
| C．every other lines | D．every other line |