I haven't tread into it much yet, I've only just----itA:looked B:observed C:glimpsed D:scanned

I haven't tread into it much yet, I've only just----itA:looked B:observed C:glimpsed D:scanned
I haven't tread into it much yet, I've only just----it
A:looked B:observed C:glimpsed D:scanned

I haven't tread into it much yet, I've only just----itA:looked B:observed C:glimpsed D:scanned
C

A:looked 看（常与at连用）
B:observed 观察;从不同的角度长时间地看并研究.
C:glimpsed 瞥了一眼
D:scanned 仔细地审阅
答案选C

B