【题目】As Polly observed the passengers on the train. she had a feeling____________ she was being watched by a tall man in a dark overcoat.
A. whereB. whenC. whichD. that
在线课程【答案】D
【解析】
考查同位语从句。句意：当波莉看到火车上的乘客时。她有一种感觉，她正被一个穿黑大衣的高个子男人监视着。feeling后接同位语从句，从句句意和句子成分完整，所以连接词为that。故选D项。