车站一切电话中断时,单线行车按书面联络法,双线行车按()。
参考答案:时间间隔法
给下列各字加上不同的偏旁组成新字再组词。
主 ____( ) 昔 ____( ) 见 ____( ) 及 ____( )
____( ) ____( ) ____( ) ____( )
寸 ____( ) 每 ____( ) 牙 ____( ) 分 ____( )
根据句意,用适当的代词填空。
1. Xiao Hong, this is _____ bag.
2. The boy is my friend, _____ name is Tom.
3. This is a bird, _____ name is Polly.
4. —Li Lei, are those your English books?
—No, _____ aren't.
5. Kate is an American girl, _____ mother is a teacher.