You can take anything from the shelf and read, but please __________ the books when you have finished with them.
| A．put on | B．put down | C．put back | D．put off |
You ________ in person; a telephone would have been enough.
| A．couldn't have come | B．needn't have come |
| C．shouldn't have come | D．mustn't have come |
I felt surprised that anyone of his intelligence ________ such an easy test.
| A．might have failed | B．could have failed |
| C．should have failed | D．must have failed |
________ from the bright smile on his face, he ________ in passing the job interview.
| A．Judging; must have succeeded |
| B．Judging; might succeed |
| C．Judged; must have succeeded |
| D．Judged, might succeed |
—Please don't tell anybody.
—I ________. I promise.
| A．can't | B．don't |
| C．won't | D．mustn't |
—Nowadays children have more freedom.
—I agree. They ________ do what they like.
| A．need | B．must |
| C．should | D．can |