NGL.Cengage.com/ourworldtours
Yes,
they
are.
Are
bicycles
fast?
68
Content
Concepts
Practice
soft
hard
Content
Concepts
Presentation
43
42
Content
Concepts
Presentation
an
airplane
a
motorcycle
a
bike
a
fire
truck
a
bus
a
boat
a
car
Vocabulary
Presentation
63
5
