It was not until 1911, _______ the first vitamin was identified, _______ people realized the importance of it．
| A．when; which | B．when; that |
| C．that; which | D．that; that |
The professor gave us _____ talk on multicultural Canadian society, _____ topic few of us are familiar with.
| A．a; the | B．the; a | C．a; a | D．the; the |
－You quit the job? Are you crazy?
－I’m serious.
| A．I don’t know for sure. | B．I am behind you. |
| C．I’m not going to kid you. | D．Congratulations. |
He disliked to wait, and he expected the manager him at once.
| A．being asked; to see | B．to be asked; to see |
| C．to be asked; seeing | D．being asked; seeing |
－How did you find the film?
－It was a(n) one, no better than the one we saw last week.
| A．satisfactory | B．awful | C．remarkable | D．embarrassing |
－Where did you make your first appointment with Harry?
－It was in the Disneyland Park in Hong Kong he served as a department manager.
| A．that | B．which | C．from which | D．where |