23 和 56 ____ 78 和 34 ____
310 和 12 ____ 15 和 13 ____
亚洲幅员辽阔,自然环境复杂多样。下列关于亚洲,叙述正确的是( )
—Why didn't your sister talk with me?
—She is a _______ girl. She is afraid of speaking before strangers (陌生人).