帮忙做一道英语短文改错题 好的话我会额外加分的

帮忙做一道英语短文改错题 好的话我会额外加分的 拜托了~
10 - 离问题结束还有 14 天 23 小时
One day （when）I was dining with my friend Zhou in McDonald's
when two young girls came in,hand in hand.While (enjoying) a
hamburger,I found Zhou looking around at something strangely (and)
I raised my eyes to see what was happening.The two girls were
making (gestures) skillfully.Obviously they were deaf-mutes.
I learned some sign (language) before,so I showed various
gestures with Zhou following me in high spirits.We played and 7__正确__
laughed cheerfully as if there (was) no one else present.Suddenly
we saw both (of) the two girls glaring at us.Before we could explain
to them,they had walked out angrily,(leaving) the food unfinished.
They thought we were making fun of them.How I regretted!
每一行改错的地方均用（）括出来了,第七行是正确的,

更正楼上第1/7行！保证准确！
1. √ 此行正确无误
2. enjoyed → enjoying
3. strangely后面加上and/so
4. are → were
5. gesture → gestures
6. languages → language
7. me → them
句意为“我和周一起，跟着两个女孩打手语”，而...

One day （when）I was dining with my friend Zhou in McDonald's
when two young girls came in,hand in hand.While (enjoying) a
hamburger,I found Zhou looking around at something strangely (and)