—The green apple is too hard for my grandfather to eat.
—You can cut it into pieces.
A:soft enough
B:difficult
C:not soft enough
游泳是一项有益____的运动,游泳是一定要到____或____的水域。
《清明上河图》栩栩如生地描绘了北宋都城的日常生活与习俗风情。有人说,该画折射出了“时代的风采”。“时代的风采”是指( )