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sweep the floor
sleep
sweep
What is she doing?
She is sweeping the floor.
They are mop the floor.
ing
p
What are they doing?
What is she doing?
What is he doing?
What are they doing?
Think and answer:
She is sweeping the floor.
He is making the bed.
They are mopping the floor.
Be V+ing is the form of present continuous tense.
现在进行时态
watch
swim
cook
run
sweep
dance
help
clean
wash
make
直接加 ing
去e加 ing