W__ do you eat junk food only once a week?Mother doesn't want me to eat too much.
问题描述：
W__ do you eat junk food only once a week?Mother doesn't want me to eat too much.
答
W(hy) do you eat junk food only once a week?Mother doesn't want me to eat too much.
答
Why do you eat junk food only once a week?Mother doesn't want me to eat too much.
答
是：Why
答
Why
询问原因
肯定对