The atmosphere of the earth ______ us from the strong sun light.
| A．prevents | B．keeps | C．stops | D．protects |
“Have you seen _______ new bike? I put it here just now.” “Is it _______ white one? A boy has ridden it away.”
| A．a; a | B．a; the |
| C．the; the | D．the; a |
“Have you seen _____ pen? I left it here this morning.” “Is it _____ black one? I found it in the corner.”
| A．a, the | B．the, the |
| C．a, a | D．the, a |
5. “Have you seen _____ pen? I left it here this morning.” “Is it _____ black one? I think I saw it somewhere.”
| A．a, the | B．the, the |
| C．a, a | D．the, a |
We hired _______ one-eyed man to play in our film, and we gave him _______ 100-pound check for just one minute.
| A．a, an | B．an, a |
| C．a, a | D．an, an |
Before he was arrested, he had taken _______ one-month holiday, and stayed in the country with ________ 18-year-old girl, one of his students.
| A．a, a | B．an, an |
| C．a, an | D．an, a |