题目
-I can\’t believe you made it to the top of the mountain!
-Yes,it is hard work.I didn\’t believe I could do it ______I reached the top.（ ）
-Yes,it is hard work.I didn\’t believe I could do it ______I reached the top.（ ）
A.
until
B.
if
C.
because
D.
so
知识点：连词辨析章节：未标注