Before the college entrance examination，many students have shown of tension．Some have trouble in sleeping while others have lost their appetite．
| A．anxiety | B．marks | C．signs | D．remarks |
―Why? Where is the key to the sound lab?
―Dear me! You _______ it in the taxi！
| A．have never left | B．never left |
| C．haven’t left | D．didn’t leave |
―________ for Beijing?
―Yes. And I’ll come back in three months.
| A．Have you left | B．Are you leaving |
| C．Do you leave | D．Did you leave |
―What were you doing when I called you yesterday afternoon?
―I ________ my homework and I was starting to take a bath.
| A．had just finished | B．was finished |
| C．have already finished | D．was going to finish |
―Twenty dollars, please!
― How terrible!―I ________ to bring my wallet with me.
| A．was forgetting | B．forgot |
| C．had forgotten | D．am forgetting |
―What’s the matter? You look worried and restless.
―Oh, nothing really serious. As a matter of fact, I ______ of my graduation thesis. I have to hand it in soon.
| A．am just thinking | B．just thought |
| C．have just thought | D．was just thinking |