______ she said this, she regretted it.
| A.The time | B.The moment | C.The hour | D.The day | 
—Is Pro.Smith giving the speech today?
 —It__________ be him. He is abroad right now.
| A.can’t | B.needn’t | C.won’t | D.mustn’t | 
My sister met him at Ningbo Grand Theatre yesterday afternoon, so he your lecture.
| A.couldn’t attend | B.mustn’t have attended | 
| C.shouldn’t attend | D.couldn’t have attended | 
---Did they have a good time at the party?
 ---Judging by their smiles, they _________ have enjoyed themselves.
| A.might | B.must | C.could | D.would | 
That little boy can pick up a tune immediately on the violin; he really has a _____for music.
| A.power | B.energy | C.intelligence | D.gift | 
----Has Mr lee arrived?
  ---No, but it is already 9 o’clock. He should ____at any time.
| A.bring up | B.turn up | C.look up | D.pick up |