题目内容
He seems ____ something valuable. He looks so worried.
A.has lost | B.to lose | C.to be losing | D.to have lost |
D
解析
练习册系列答案
相关题目
题目内容
He seems ____ something valuable. He looks so worried.
A.has lost | B.to lose | C.to be losing | D.to have lost |
D
解析