是be quiet还是be quietly?

be quiet还是quietly 是be+(adj)吗 be quiet (quiet 是名词还是形容词) Sit ____,please.是quiet还是quietly? 是keep quiet还是keep quietly 为什么 Be quiet, 英文请安静怎么说是be quiet还是being quiet play the piano接quiet还是quietly Be quiet中的Be是be动词吗? ----you please ----quiet?此空是填Will be 还是Do be? 为什么说quiet 和quietly是反义词? You must be______.The baby is sleeping.是填quiet还是quietly? 请安静,是please be quiet.