他的钢笔在哪英文怎么说

"Where is his pen?" is the correct way to ask where someone's pen is in Engpsh.

This phrase is a question that uses the verb "to be" (in this case, "is") and the possessive pronoun "his" to ask about the location of someone's pen. The word "where" is used to ask about the location or place of something.

Here are a few example sentences using this phrase:

"Where is his pen? I can't find it anywhere." (我找不到他的钢笔，它在哪里？)
"I think I left his pen on the kitchen counter. That's where it is." (我想我把他的钢笔放在了厨房柜台上。它就在那里。)
"Can you please tell me where his pen is? I need to borrow it for a moment." (能告诉我他的钢笔在哪里吗？我需要借用一会儿。)