-- Whose pants are they?---.A. They are hereB. They are greenC. They are theirD. They are

问题补充：

-- Whose pants are they?

---.

A. They are here

B. They are green

C. They are their

D. They are theirs

答案：

A. They are here

B. They are green

C. They are their

(答案→)D. They are theirs

解析：

这题考查交际用语，问句是：这是谁的裤子？答语应该是：是他们的。选D。