Three quarters of the earth ________ water.

1. A.
   is
2. B.
   are
3. C.
   have
4. D.
   has

Three quarters of books are written in English.

1. A.
   Three four
2. B.
   Three fourth
3. C.
   Three fourths
4. D.
   Fourths Three

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Three quarters of the population of our village _______ very rich.

A. is　　B. was　　C. are　　D. be