— They look worried.What's wrong with them?— It seems that they something important.A．have lost B．lostC．had lost D．lose为什么选a不选b

分类: 作业答案 • 2021-12-19 11:52:27

问题描述：

— They look worried.What's wrong with them?— It seems that they something important.
A．have lost
B．lost
C．had lost
D．lose
为什么选a不选b

答

因为这里需要强调过去发生的事对现在造成的影响（即：看上去很担忧）
所以使用现在完成时,
选择A have lost