尊重国家主权原则是国际法和国与国交往的基本原则。之所以要尊重国家主权,是因为
—Mum, this is my English teacher, Mr Wu. —____________________, Mr Wu.
—_________ your books, Kitty. — OK. The book ___________ now.
Hi, I ____________ Amy. What __________ your name?
He says __________________ to his parents before he goes to bed.
--Which month has______ days in a year? ----February.