He did well in the examination. He _____ hard at his lessons..
| A．must have worked | B．can have worked |
| C．will have worked | D．has worked |
----Will you tell the secret to the teacher? --- No! ____ asked to.
| A．Even if | B．Even as | C．Even so | D．If |
With his mother him, he is getting on well with his work.
| A．help | B．to help | C．helping | D．helps |
As a young man, he ________ many social activities and later _______ the Party.
| A．took part in; joined | B．took part in ; joined in |
| C．joined in; took part in | D．joined; took part |
The _________ hunter has many interesting ________.
| A．experience; experiences | B．experienced; experience |
| C．experienced; experiences | D．experiences; experienced |
Long years of hard work made _____ possible for him to enter a key university in Beijing.
| A．that | B．this | C．it | D．which |