Fix grammatical errors in this sentence: Posts about Mom's day will probably popping up like mushrooms from the ground here at Lang-8.
The first time I saw the word "pizza" in the sentence, I thought it was a misspelling. But when I looked it up, I found it to be a misspelling of "pizza."

I'm not sure if I'm the only one who has this problem, but I'm not sure if I'm the only one who has this problem.

I'm not sure if I'm the only one who has this problem, but I'm not the only one
The first sentence is correct.
Corrected: The first sentence is wrong.
Correct: The second sentence is wrong.
Correct: The second sentence is correct.
Correct: The first sentence is wrong.
Correct: The second sentence is wrong.
Correct: The first sentence is wrong.
Correct: The second sentence is wrong.
Correct: The first sentence is wrong.
Correct: The second sentence is wrong.
Correct: The first sentence is wrong.
Correct: