Question

My new pen ______. Who ______ have taken it?

1. A.
   has been disappeared; can
2. B.
   has disappeared; could
3. C.
   is missing; should
4. D.
   has been lost; may

Answer 1

B
试题分析：句意：我的新钢笔不见了。谁把它给拿走了？disappear不能用于被动，故排除A；sth be missing某物丢了；sth be lost某物丢了；should have done应该做而未做；could have done可以用于疑问句，表示过去可能发生过某事；may have done表示过去某事可能已经做了，不能用在疑问句中；故选B。
考点：考查情态动词的用法。