Never before in China __________ so carefully concerned about the food safety.
| A．people have been | B．have people been | C．are people | D．people are |
—What courses are you going to learn next term?
—I don't know.But it's about time ________ on something.
| A．I'd decide | B．I decided |
| C．I decide | D．I'm deciding |
The little child ________ go out alone at night, so he ________ walk in the dark that night.
| A．doesn't dare to; dared not to |
| B．daren't to; didn't dare to |
| C．daren't; dared not |
| D．doesn't dare to; dare not |
—Did Ann fail in English?
—She ________.Don't you notice that she looks depressed?
| A．might | B．must |
| C．may have | D．could have |
Look! There are so many mistakes in your composition. You ________ have fixed full attention on it.
| A．can | B．should |
| C．need | D．might |
Days later, I tried to get my sister to tell me what was going on, but she ________ say anything.
| A．mustn't | B．shouldn't |
| C．wouldn't | D．mightn't |