It was along the Mississippi River Mark Twain spent much of his childhood. [ ]A.
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![It was along the Mississippi River Mark Twain spent much of his childhood. [ ]A.](/pic/43_1421715.jpg)
It was along the Mississippi River _____ Mark Twain spent much of his childhood.
[ ]
A. howB. which
C. that
D. where
试题答案
C