Good morning! Now let me report the discussion work in our group. Wu Jun cleans up rooms ____ weekends and Jia Mei likes cooking dinner with her mum. Wang Ping sometimes ____ (wash) clothes for her family. As for me, I usually help my father water the flowers.
In my opinion, it is necessary ____ us students to do some housework by doing it, we can help our parents and understand them better. We’ll also learn to take care of ____ . Besides, we can relax ourselves from hard work and develop our abilities.
That’s all. Thanks for ____ ( listen)!
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表示不同平面，下列命题正确的是 （ ）