——Jane failed the English exam. She must be very sad.——Let's go and .
A:ring her up
B:cheer her up
C:wake her up
星期天,小刚应邀到同学家做客,其行为符合礼仪要求的是( )
就连人迹罕至的南极洲也留下了旅游者的足迹,形成这种旅游现象的特点是( )