【单选题】—My parents always tell me _______ others late at night. —They're right. It's not polite. [ ]
【判断题】细胞质遗传正交和反交的结果相同,都只表现母本的性状。( )
【单选题】在计算机系统中,普遍使用的字符编码是 。
【判断题】细胞质遗传正交和反交的结果相同,都只表现母本的性状。
【单选题】They’re my grandfather and grandmother.
【单选题】— ______________ are they? — They're my parents. [ ]
【单选题】They're going ___________ my parents. [ ]
【单选题】--My parents always tell me _________ others late at night. --They’re right. It’s not polite.