tim has been in australia for six months .his brother hasn"t seen him __january.(for/since/from /by)翻译选择哪一个?为什么?

分类: 作业答案 • 2022-01-02 15:41:05

问题描述：

tim has been in australia for six months .his brother hasn"t seen him __january.
(for/since/from /by)
翻译
选择哪一个?为什么?

答

选择Since,现在完成时表示时间跨度.Since+时间点是固定的用法.