问题
选择题
He seems ____ something valuable. He looks so worried.
A．has lost
B．to lose
C．to be losing
D．to have lost
答案
答案：D
搜题请搜索小程序“爱下问搜题”
He seems ____ something valuable. He looks so worried.
A．has lost
B．to lose
C．to be losing
D．to have lost
答案：D
