Question

1.that tree is so tall! 2.wow! that tree is so tall . which is correct

Answer 1

First one is correct.....

Answer 2

That the tress is so tall is the correct one. But still if you want to use some exclamatory words then you can use the second sentence too.

It depends on the expression that you showcase through your sentence, and grammatically both sentences are true or correct.

But you do not need to use the exclamation mark at the end of first sentence and you can write it as “That the tress is so tall” only.