( ) -- is he? -- He’s my brother. A. who B. Who C. What
( )你要问路,就要先对对方说:__________ A. Excuse me. B. Can I help you ?
( )Mike: Good afternoon, Mrs. White! Mrs. White:
( )Sarah: Good morning, Mr. Black! Mr. Black:
( )Mrs White: Hello, Mike. Mike:
( )Sarah: Bye, Wu Yifan. Wu Yifan: