What is this?
an aeroplane
This is ______.
modern.
What is this?
train
What's this?
boat
What are they?
inventions
He's ______ the motorbike.
fixing
You can _____ things.
invent
What is this?
helicopter
What are they?
rubber bands
You can take a _____ to Ha Noi so you arrive there faster.
flight
What are they?
propellers
He's turning the ________.
propellers
What is it?
engine
What is it?
engine
What is it?
engine
What is it?
engine
