great scientist Yuan Longping is! He spent all his life on the research of rice.
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— Do you like rock music? — No, not at all. I like music really gentle.
Her mother didn’t allow her _________ computer games at all.
Take more exercise every day, or you may ___________.
—______ can you cure my father, Doctor? — In about a week.
Smoking is bad ___________ health. You must give __________.