I was really anxious about you. You _______ home without a word．
| A．mustn’t leave | B．shouldn’t have left |
| C．couldn’t have left | D．needn’t leave |
| A．a; / | B．the;/ | C．a ; the | D．/; the |
When _________ an egg for the first time, the hen lay in the doghouse.
| A．lay | B．lying | C．laying | D．laid |
It is obvious __________ he has no chance to go to college.
A. that B. whether C what D. Which
From a _____ look in his eyes, I bet he didn't get the hang of the meaning of the poem.
| A．frightened | B．satisfied | C．puzzled | D．excited |
__________ you trust him, you may as well follow his advice.
| A．So that | B．Now that | C．Even if | D．Except that |