A cook will be immediately fired if he is found _______ in the kitchen.
| A．smoke | B．smoking |
| C．to smoke | D．smoked |
Is this the factory ______ my father visited last year.
| A．what | B．the one | C．where | D．that |
They are ______ at the _______ news.
| A．frightening, frighten | B．frightened, frightening |
| C．frightening, frightening | D．frightened, frightened |
Only by working hard , _______ .
| A．can succeed | B．succeed | C．can you succeed | D．you can succeed |
The teacher asked me ________.
| A．where was I from | B．where I was from |
| C．what country I was come from | D．which country do you come from |
Don’t lose heart _________ you fail.
| A．until | B．as if | C．unless | D．even though |