I have been living in the United States for twenty years. but seldom so lonely a

I have been living in the United States for twenty years， but seldom　 so lonely as now.?A.have I felt B.I had felt?　 C.I have felt　 D.had I felt

试题答案

A

将现在与以前相比较，故用现在完成时，当否定副词置于句首时，句子要用部分倒装形式。句意为：……但我很少感觉到像现在这样孤独。