问题补充:
I have been living in the United States for 20 years, but seldom so lonely as now.
A. have I felt
B. I had felt
C. I have felt
D. had I felt
答案:
(答案→)A. have I felt
B. I had felt
C. I have felt
D. had I felt
解析:考查时态和倒装句。当否定词或者半否定词放在句首的时候,使用部分倒装的形式。本句的seldom(很少)放在句首,后面使用部分倒装的形式,根据前句中的现在完成时,说明本句也使用现在完成时。句意:我在美国生活了,但是很少像现在这样感觉到孤单。故A正确。