桌子上有一只钢笔英语怎么说

桌子上有一只钢笔英语为 "There is a pen on the desk."
来源：这句话是由三个简单的英语单词组成的，即"there","is","a/an"和名词"pen"。
例句1:
There's a pen on the table.
(桌子上有一支钢笔。)
例句2:
Can you see the pen on the desk?
(你能看到桌子上的钢笔吗？)
例句3:
I left my pen on the desk, can you grab it for me?
(我把钢笔放在桌子上了，你能把它拿给我吗？)