．（全国卷I 30）. The little boy won’t go to sleep ______________his mother tells him a story.
| A．or | B．unless | C．but | D．whether |
My dictionary has disappeared. Who do you think ______ have taken it?
| A．should | B．must | C．could | D．would |
It doesn’t make ______to buy that expensive coat when these cheaper ones are just as good.
| A．decision | B．promise |
| C．sense | D．difference |
When she woke up, she realized that the things she had dreamt about could not ______ have happened.
| A．possibly | B．likely | C．hardly | D．usually |
— We ________ of gas. I’m afraid we can’t go much further.
— I know there’s a gas station ahead. Will it last until we get there?
| A．run out | B．have run out |
| C．are running out | D．had run out |
At times, he felt ____ difficult to _______ himself to getting up early.
| A．it; adopt | B．that; attempt |
| C．that; advocate | D．it; accustom |