问题

Two-thirds of the land __ covered with green grass and the rest _ covered with pine trees.

A:is; is
B:is; are
C:are; is
D:are; are

正确答案是：

同类题型

Hi,Ann! I won the first prize in theEnglish Speech Contest.-Congratulations!And I guess your parentsmust____you.

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e really should do more exercises from now on ____, I hope he could get oversoon