With the night falling, the crowd gathering around the accident scene began to_________.
| A．break up | B．break down |
| C．break out | D．break away |
25. I ______ have been more than six years old when the accident happened.
| A．shouldn’t | B．couldn’t | C．mustn’t | D．needn’t |
He _____ have completed his work; otherwise, he wouldn’t be enjoying himself by the seaside.
| A．should | B．must | C．wouldn’t | D．can’t |
—Excuse me. But I want to use your computer to type a report.
—You _____have my computer if you don’t take care of it .
| A．shan’t | B．might not | C．needn’t | D．shouldn’t |
You can’t imagine that a well-behaved gentleman _____ be so rude to a lady.
| A．might | B．need | C．should | D．would |
________ fired, your health care and other benefits will not be immediately cut off.
| A．Would you be | B．Should you be |
| C．Could you be | D．Might you be |