She is only a (n) _________, not a friend of mine.
A. acquaintance B . familiarity C. announcement D, family
The radiation of uranium was then regarded as_____secret of_____nature.
| A．a;the | B．a;a | C．the;the | D．a;/ |
Would you like______ knife and fork，or would you rather use______ chopsticks，sir?
| A．the;the | B．a;/ | C．/;the | D．/;/ |
—Who came out______first in the London Marathon?
—Michael.He’s always______first to reach the line.
| A．the;the | B．/；/ | C．the;/ | D．/;the |
Johnson had made up his mind to give it up，but on______second thought he determined to try______ third time.
| A．/；a | B．/；/ | C．a；a | D．the；a |
Quickly!Tom，give me ______pen to mark the page.I see______under the book.
| A．/；it | B．a;that | C．the;one | D．a;one |