We must____ when we're in danger.
——Hi, Jack. Is t this your new bike?
——No, _________is over there. It's a present from my uncle.
已知α是△ABC的一个内角,且sinα+cosα=15,则sin2α+cos2α的值为( )
“不敢高声语,恐惊天上人”.这里的“高”指的是声音的 ____(填“音调”“响度”或“音色”)大.月宫里的嫦娥不会听到你说话的声音,因为 ____不能传声.
Are ____ your ____?