一、单项填空（共15小题；每小题1分，满分15分）
1. ______ train accident on July 23rd was ______ terrible disaster, making a number of people
lose their lives.
A. An; a B. The; a C. An; the D. The; the
2. About _______ of the workers in the factory were born in _______.
A. three-fifths, 1970s B. three- fifths, the 1970s
C. three- fifth, the 1970’s D. three- fifth, 1970
3. —Do you know _______ this dictionary belongs to?
— Let me see. Oh, it’s ______.
A. who, mine B. who, me C. whose, mine D. whose, me
