Underline the mistakes rewrite the sentences correctly when i arrived in the airport,i went to the check-in-desk.mary have decided to take a taxi because it is faster.she already was to the carpathian mountains.my brother travels by ship last summer.

When I arrived in the airport, I went to the check-in-desk (check-in desk). Mary have (has) decided to take a taxi because it is faster. She already was (has already been) to the Carpathian mountains. My brother travels (traveled) by ship last summer.