Could you take a look at this sentence and tell me if it's grammatically correct?

你能帮我看下这句话吗，这句话语法上对吗？

How to invalidate selected session pro grammatically?

如何以编程方式选择的会话无效？

Was the menu clean, in good repair and grammatically correct?

菜单干净、装订良好、书写正确吗？

The functional word "his" only makes the sentence grammatically correct.

功能词“ his ”实际上就是使这个句子语法上的正确。

They shouted, not really caring if what they said was right grammatically.

他们叫着，并不在乎他们的话合不合语法。

Make sure that the sentence is grammatically correct and punctuated correctly.

注意句子的语法和标点都正确。