81. Your car is different _____ mine.
A. to B. in C. from D. for
82. I found history very _____.
A. amusing B. amused C. amuse D. to amuse
83. Her _____ include swimming and reading.
A. interests B. interesting C. interested D. interest
84. Great Opera _____ of the world can be heard at the Sydney Opera House.
A. sing B. singings C. singers D. to sing
85. English is the _____ language on one- fifth of the land area of the world.
A. office B. official C. officer D. officially