补写成语。

无____无束       一无所____     ____空而起     ____ ____可危

生命____危       身馅____圄     ____在旦夕      肝胆____裂

椭圆$4x^2+9y^2=144$内的一点$P\left(3,2\right)$，过点P的弦恰好以P为中点，那么这弦所在的直线方程（   ）

根据短文内容完成下列句子，每空一词。
   Mike and Peter are good friends. They are students. They go to school five days a week. Mike’s birthday is in the eleventh month of a year. Peter’s birthday is October 1st. That’s National Day. Mike likes playing basketball, but Peter likes playing soccer. Mike often wears sports shoes to play basketball. He likes white sports shoes. Mike’s birthday is coming. Peter goes to a sports store with his friend, Bill. They have alook at basketballs and sports shoes. At last, they buy a pair of white sports shoes for Mike. When Mike sees the shoes, he is very happy.