整理历年托福词汇题，并附正确答案，本期题目为：noticed，看看你能答对吗?
Thousands of tons were extracted before 1875, when it was first noticed that the tar contained fossil remains. Major excavations were undertaken that established the significance of this remarkable site.
The word “noticed” is closest in meaning to which of following?
(A) predicted
(B) announced
(C) corrected
(D) observed
正确答案： D
