AprettybigmomentformetocrosstheborderacrosstheDanube.HadheardofaBulgarian"ecologicaltax"at10eurowhicheverybodyissupposedtopay,buttoustherewasonlylaughter,smile,thumps-up,andapairofgapinglooksfromthefrontierguardswhentheyheardaboutourlongbikingtrip.

A pretty big moment for me to cross the border across the Danube. Had heard of a Bulgarian "ecological tax" at 10 euro which everybody is supposed to pay, but to us there was only laughter, smile, thumps-up, and a pair of gaping looks from the frontier guards when they heard about our long biking trip.
[Q]: [Latchisreversibleforleftandright.]
[A]: [Latch is reversible for left and right.]
Problem: Add spaces: You'reprobablyongames,afterall,that'swhyyousignupforanonlinecasino.

Spaces added: You're probably on games, after all, that's why you sign up for an online casino.
This text is missing some spaces, please add them: TodayyouwillsailtoGebelElSilsila.InancienttimesitsquarriesyieldedcountlessstonesforthefamoustemplesinThebesandalongtheRiverNile;upto3,000menwereworkinghere.
Today you will sail to Gebel El Silsila. In ancient times its quarries yielded countless stones for the famous temples in Thebes and along the River Nile; up to 3,000 men were working here.
input question: Fix spacing: Theystarttoplaywitheachother,somekindof"wrestling".

output answer: They start to play with each other, some kind of "wrestling".
input question: Fix spacing: AndthepeopleagreetothiscovenantandmakeanoathtoobeyGod.

output answer:
And the people agree to this covenant and make an oath to obey God.