They ....................sail a boat.
can
is
isn't
can't
He is.....................a bike.
ride
riding
rides
driving
She .....................ride a horse.
ca't
can
can't
ca
She is driving a...........................
subway.
truck
train
van
They ...................riding scooters.
is
can
are
aren't
He..........................flying a helicopter.
isn't
is
am
are
I ...................ride a bike.
is
can
can't
are
He is.......................... a plane.
driving
flying
sailing
riding
She is......................... a truck.
riding
driving
flying
sailing
She ....................... drive a van.
can
are
can't
aren't
I......................driving a car.
am
am not
are
is