疑問文
否定文
100
She plays tennis.
Does she play tennis?
100
He is a teacher.
He is not a teacher.
200
He likes baseball.
What sport does he like?
200
I like sushi.
I don't like sushi.
300
He studies English hard.
He doesn't study English hard.
400
I have been to China once.
I have never been to China.
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