—Believe it or not, I have met him before.
—No kidding? ________ you've never mentioned it?
| A．What for | B．How come |
| C．How about | D．What if |
This is the only foreign film ___ I have seen this month.
| A．that | B．when | C．which | D．of which |
His mother was born in Green, and Greek was her native language, ___.
| A．so it was with his father | B．so did his father | C．so was his father | D．so his father was |
While reading, you'd better make a mark ___ you have any questions.
| A．on which | B．at where | C．the place where | D．where |
Don't keep your mouth ___ if you want to improve your spoken English.
| A．shut | B．shutting | C．shutted | D．to shut |
My classmates, Li Ming, was highly praised for ___ a good deed.
| A．doing | B．have done | C．having done | D．being done |