high的副詞形式怎麼寫

例句：

The tower stands 30 metres high.

塔高30米。

The rooms had high ceilings.

那些房間的天花板很高。

These goods are priced too high.

這些貨品定價過高。

The debate was highly emotional at times.

辯論有時非常情緒化。

Mr. Singh was a highly successful salesman.

辛格先生曾是一位非常成功的`推銷員。

Japan is a highly competitive market system.

日本實行的是一個高度競爭的市場體制。