on, i think
on an aeroplane.
on aeroplane
go from an aeroplane
Aeroplane
a cardborad box
By ship and aeroplane.
which first Indian lady travel by aeroplane
it is with an specil thing thats called aeroplane
Aeroplane, cruise ship or swim.
? But you could travel by aeroplane
The grammatically correct way to say this phrase is "travel safely." This is because "safely" is an adverb modifying the verb "travel," whereas the adjective "safe" should only be modifying a noun. In this case, the word "travel" is used as a verb rather than a noun.
8 669 kilometres.