23.打喷嚏的时候务必用纸巾遮住口鼻。(Do) Do cover your nose and mouth with a tissue when you sneeze.
Answer key
Do cover your nose and mouth with a tissue when you sneeze
2021_上海 Paper
23.打喷嚏的时候务必用纸巾遮住口鼻。(Do) Do cover your nose and mouth with a tissue when you sneeze.
Do cover your nose and mouth with a tissue when you sneeze