Alexander tried to get his work _______in the medical circles.
| A．to recognize | B．recognizing | C．recognize | D．recognized |
Anything _____ could be found has been used to repair the damaged bridge.
| A．which | B．that | C．what | D．不填 |
Here is my classmate _____ bicycle was lost yesterday.
| A．his | B．that | C．whose | D．which |
_____ seemed as if nobody knew anything about the matter.
| A．This | B．That | C．It | D．One |
At the sight of the _____ scene, he was almost _____ to death.
| A．frightened；frightening | B．frightened；frightened |
| C．frightening；frightening | D．frightening；frightened |
He is one of the most excellent students in our class, and he always _____ himself in his studies.
| A．buries | B．hides | C．covers | D．leaves |