I _______(feel) very lonely when I was away from my parents for the first time.

问题描述:

I _______(feel) very lonely when I was away from my parents for the first time.

这个句子是时间状语从句,从句的时态是一般过去式,所以主句的时态也应该是相应的过去时态,所以空格处应填feel的过去式felt.