我每天读英语书来提高我的词汇量。

I read English books every day to ___improve my vocabulary.

我认为提高法语的最好方法是住在法国。

I thought the best way to ___improve my French was to live in France.

自从开始这种新饮食后，她的健康显著改善了。

Her health has ___improved dramatically since she started on this new diet.