改錯：Nevertheless,mylaterexperienceprovesthatpracticingca...

問題詳情：

改錯：Nevertheless, my later experience proves that practicing calligraphy was both necessary and beneficial.

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【回答】

proves→proved　根據後面的was可知，發生在過去的事情，故將proves改為proved。

知識點：一般過去時及其被動式

題型：短文改錯