---Now, children begin to learn English at a very early age. It is really a good thing?
---_________.
| A．Yes, just in case | B．Well, it depends |
| C．Don’t mention it | D．Believe it or not |
— What did you do during your holidays?
— ______
| A．Nothing much. | B．Nothing serious. |
| C．Nothing more. | D．Nothing interesting. |
Could you give me the phone number of _____ David Cooper on _____ Fifth Avenue?
| A．a ; the | B．a ; 不填 | C．不填；the | D．the ; the |
Without the earth’s atmosphere to protect them, astronauts can be exposed to intense radiation from the sun, ____ them at risk of cancer.
| A．to leave | B．leaving | C．having left | D．left |
If there were no automatic washing machines, people would have to wash their clothes ______ hand or ______ hand-operated machines.
| A．by; by | B．with; with | C．on; with | D．by; with |
“No bread eaten by man is so sweet as______ earned by his own labour. ”
| A．one | B．that | C．it | D．those |