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Which parts I should need to do corrections?

(a) Last Sunday, John and Peter decided to go fishing. They brought their fishing gears along them. They went to a river near their house.

(b) Unfirtunately, David slipped and fell into the river. John shouted for help as loud as he could. David was drowning. He felt afraid.

(c) Luckily, a young man came by the river. He jumped into the river and David was saved. He took David up to the land. John thanked the young man for saving David. What a day!
Comments  
"Fishing gear" is uncountable. 

"...dragged David back onto land (or the riverbank)."
Thanks. but what does it mean? "What a day!"
Students: We have free audio pronunciation exercises.
It's an exclamation expressing exhaustion, usually used after having done many things.