When you learn to ride a bike, you have to learn to _______ first.
A：keep your balance
B：keep your promise
C：keep calm
离婚后因为孩子抚养和前夫发生纠纷，女子多次发短信打电话辱骂前夫，后被前夫告上法庭。看到最终法院判决60条辱骂短信要赔偿前夫3000元并赔礼道歉，无锡女子柳如烟感觉这骂人短信着实价格不菲，悔不当初！法官做出这一判决的依据是（ ）
设P={x|-1<x<2}，Q={x|x+a<0}，若P⊆Q，实数a的取值范围是（ ）
—How is your grandma?
—She is fine. She used to____ TV at home after supper. But now she is used to____out for a walk.
We are planning to have a surprise party ________ her fifteenth birthday
