Give a lesson

来源: 走马读人 于 2015-05-28 12:16:59 [] [博客] [旧帖] [给我悄悄话] 本文已被阅读： 次 (130 bytes)
the, a/an, of  are "choice less" words while would, don't…  are inclinable, opposing to wouldn't, do.
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