The woman looks so worried. She seems something valuable.A. loseB. losingC. to have lostD

问题补充：

The woman looks so worried. She seems something valuable.

A. lose

B. losing

C. to have lost

D. having lost

答案：

A. lose

B. losing

(答案→)C. to have lost

D. having lost

解析：seem后接不定式作宾语，接一般式时表示要发生的动作，接完成式时表示已完成的动作。句意：那位妇女看起来如此着急她似乎丢了什么有价值的东西。