MacDonald who had spent much of his time graduating from college backpacking round Europe,

发布时间：2020-08-16 19:04:07

MacDonald who had spent much of his time     graduating from college backpacking round Europe,decided last year to settle down.
A. when
B. while
C. since
D. before

网友回答

A. when
B. while
(答案→)C. since
D. before
解析：句意为“自大学毕业回来之后。MacDonald一直花费了他的大部分时间徒步环游欧洲，到去年才决定安下身来”。since表“自从……以来”之意。
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