John climbed ______ to the top of the mountain.

John climbed ______ to the top of the mountain.
A、by way of
B、in the way
C、on the way
D、all the way
【正确答案】：D
【题目解析】：by way of经由；当作; in the way妨碍；挡道; on the way在……途中; all the way一路上；自始至终
句意：约翰一直爬到山顶。