问题
选择题
_____ in thought, he sat at the edge of the bed, with his eyes _____ on the letter in his hand.
A．Lost; fixing
B．Losing; fixed
C．Lost; fixed
D．Losing; fixing
答案
答案：C
考查分词用法。Be lost in thought陷入沉思；第二空的eyes与fix构成被动关系，使用过去分词。