The police were seeking more information to find out _____ the rich merchant.
| A．who was it that killed | B．who it was that killed |
| C．it was who killed | D．who was it killed |
The operation is _____ success and the patient is now out of _____ danger.
| A．a, the | B．a, 不填 |
| C．不填, the | D．不填，不填 |
Since tasting the excitement of _____ big city life, she never wants to live in _____ country again.
| A．the, the | B．不填，不填 |
| C．the, 不填 | D．不填，the |
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 |