"Миїдемонатролейбусі."

Why wasn't tram accepted?

What is the difference between trolley and trolleybus?

Why is the definite marked wrong? ("The trolleybus")

'we are riding a trolley' shouldn't it be accepted too?

It should be, "We're riding the trolley." Nobody says, "...going by trolleybus," unless the trolley goes 100s of kilometers. Trolleys only go short distances.

Trolleybuses, as well as so called "shared taxis", which are indeed small buses going on pre-defined routs, are not common to many countries. This fact creates misunderstanding and confusion among the DL community. It would be very helpful if the creators of this unit used pictures to introduce the words for those means of public transportation, which are unique to Ukraine.