Three-fourths of the surface of the earth ___ sea.

时间:2022-06-09 10:33来源:未知作者:admin 点击: 次

28. Three-fourths of the surface of the earth ___ sea. A. is B. have been C. are D. was

28. Three-fourths of the surface of the earth ___ sea.

A. is

B. have been

C. are

D. was

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