What is it? (AmE and BrE)
AmE: conductor / BrE: guard
What is it?
to pollute
What is it?
an address
What is it?
an escalator
What is it?
a station
What is it?
stairs
What is it?
a tunnel
What is it?
a suitcase
What is it?
a cup of coffee
What is it?
a train track
What is it? (AmE and BrE)
AmE: one-way ticket / BrE: single ticket
What is it?
a platform
Who is it?
an engineer
What is it?
fuel
What is it?
a cup of tea
What is it?
eco-friendly
What is it?
a ticket office
What is it? (AmE and BrE)
AmE: round-trip ticket / BrE: return ticket
What is it?
to get on
What is it?
a backpack
What is it? (AmE and BrE)
AmE: railroad / BrE: railway
What is it?
to invite
What is it?
to get off
What is it?
A stop