When the children are busy playing their games．They had better be _____
| A．let out | B．left out | C．left alone | D．left away |
.
He worked day and night, and therefore he _______ buy the sports car.
| A．could | B．was able to | C．might | D．would |
.
_______ something to eat, they began to look for something to drink.
| A．To find | B．Find | C．Found | D．Having found |
.
If you try your best to study, I think it quite _____that you will catch up with other students.
| A．possibly | B．certainly | C．probably | D．likely |
.
In _______ summer of 1963 Martin Luther King Jr. gave _______ speech to many black people.
| A．不填; a | B．不填; the | C．the; the | D．the; a |
.
－Don’t be late for the meeting this afternoon!
－_______
| A．No, I won’t. | B．Yes, I won’t . | C．No, I don’t. | D．Yes, I do. |