When asked to explain_______ he did to make his students so fasinated with his lessons, the teacher paused and thought deeply．
| A．what was it that | B．that what it was |
| C．what it was that | D．what was it |
It is really _______ useful dictionary and _______ dictionary every one of us needs.
| A．a, a | B．a, the |
| C．the, a | D．the, the |
Jim is _______ brave boy and _______ boy never fearing anything.
| A．a, a | B．a, the |
| C．the, a | D．the, the |
“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 |