— Does my question sound ______enough?
— I don’t think so. You can ask more______ by using “could” instead of “can”.
| A．politely; politely | B．politely; polite |
| C．polite; politely | D．polite; polite |
—Must I water the flowers now?—No, you ________ . You __________ do it later.
| A．mustn’t, must | B．mustn’t, may |
| C．needn’t, may | D．needn’t, must |
We’ll play basketball ________ Class 3 tomorrow.
| A．over | B．against |
| C．to | D．for |
Do you know _________ an “o” and _________ “u” in the word “computer”?
| A．there is, an | B．is there, an |
| C．there is, a | D．is there, a |
The Yangzhi River is one of __________ in the world.
| A．the longest rivers | B．the longest river |
| C．longer rivers | D．longer river |
—How can we protect ourselves ________ the earthquake?—We should stay calm first.
| A．with | B．about |
| C．for | D．from |