本仅仅换了件衬衫。用英语怎么说？

本仅仅换了件衬衫。

Ben had merely changed his shirt...

ben

n. 内室，起居室，[苏格兰]峰，山顶；

例句
Richard Brome, an acolyte of Ben Jonson's, wrote 'The Jovial Crew' in 1641...
本·琼森的仆人理查德·布罗姆在1641年写了《一伙快活人》。

had

v. 有（ have的过去式和过去分词 ），（亲属关系中）接受，拿，买到；

例句
He claimed that his parents had abandoned him...
他声称父母遗弃了他。

merely

adv. 仅仅，只不过，只是，纯粹，全然；

例句
In actuality, Teddie did not have a disorder but merely a difficult temperament...
实际上，小特迪并非哪不正常，而仅仅是属于困难型气质。

changed

[医]变化的，改变的；

例句
Since the Sixties, afforestation has changed the Welsh countryside.
60年代以来，植树造林已经改变了威尔士的乡村面貌。

his

pron. (he的所有格)他的，(he的物主代词)他的东西；det. 属于他的，用于名词前，自己的，指某人的，上帝的；

例句
He claimed that his parents had abandoned him...
他声称父母遗弃了他。

shirt

n. 衬衫，衬衣，内衣，汗衫；

例句
Remember to bring an apron or an old shirt to protect your clothes...
记得带一个围裙或者一件旧衬衫来，免得弄脏你的衣服。