我看着他拿了个托盘排起了队。用英语怎么说？

我看着他拿了个托盘排起了队。

I watched as he got a tray and joined the queue...

watched

vt. 注视，注意（watch的过去式与过去分词形式）；

例句
He watched Karl run across the street to Tommy.
他看着卡尔向街对面的汤米跑去。

as

adv. 同样地，一样地，例如；prep. 作为，以…的身份，如

例句
As far as I can recall, Patti was a Smith.
我记得帕蒂是姓史密斯的。

he

pron. 他，它，一个人；n. 雄性动物；

例句
Logic had prevailed and he had abandoned the idea.
最终理智占了上风，他打消了那个念头。

got

v. 得到(get的过去式和过去分词)，抓住，说服，受到（惩罚等）；

例句
They said goodbye to him as he got aboard the train at Union Station.
当他在联合火车站登上火车之际，他们向他道别。

tray

n. 盘子，托盘，浅盘，满盘；

例句
...a tray of brownies.
一碟果仁巧克力饼干

and

conj. 和，与，而且，于是，然后，因此；

例句
I spend a lot on expensive jewelry and clothing...
我花很多钱购买昂贵的首饰和衣服。

joined

v. 连接( join的过去式和过去分词 )，联结，加入，参加；

例句
Podulski had joined the U.S. Navy as an aviator, adopting a new country and a new profession.
波度尔斯基加入美国海军当上了飞行员，不仅改了国籍还换了行当。

the

art. 指已提到的人（物），指说话人与听者已知的人（物），用于独一无二的事物前，与形容词最高级和序数词连用；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

queue

n. （人或车辆）行列，长队，辫子；vi. （人、车等）排队等候；vt. （使）排队，列队等待；

例句
First in the queue were two Japanese students.
队伍最前面是两个日本学生。