单项选择题

Three-fourth of the surface of the earth ______ sea.

A. was
B. are
C. were
D. is
<上一题 目录 下一题>
热门 试题

单项选择题
All I can say ______ he has always been good to me.
A. is
B. are
C. was
D. were
单项选择题
But nothing ______ with John Stockham’s performance in Houston.
A. was compared
B. has compared
C. compare
D. compares
相关试题