It is a great ______ for us to be invited here to meet the great scientist face to face.
| A．honour | B．favor | C．pride | D．success |
Finding information in today's world is easy.The ________ is how you can tell if the information you get is useful or not.
| A．knowledge | B．ability |
| C．competition | D．challenge |
Friendship is both ________ source of pleasure and ________ component of good health.
| A．a; a | B．/; / | C．the; a | D．a; the |
As ______ mountains surrounding our village are turning much greener, they have become ________ home to a large number of wild animals.
| A．the; / | B．the; a | C．/; a | D．the; the |
．—You've dropped ________ “s” in the word “acros”．
—Oh, ________ letter “s” should be doubled like this “across”．
| A．a; a | B．an; a | C．an; the | D．the; the |
We Chinese have a dream— ________ dream to turn a welloff life into ______ reality by 2020.
| A．a; / | B．the; / | C．a; a | D．the; the |