假设你邻居家的儿子丢失了，请你根据表格内容，以孩子父亲的名义写一则寻

人启事，开头和结尾已给出。（40词左右）

  Can you help me ,please ? I can`t find my son(儿子) .He                                 

                                                              .Thank you !

---I can’t find the key _____ the bike, can you help me?

— Alice, I can’t find my bike.

— Don’t worry. I saw ______ black one under the tree. Is it yours?

A．a                B．an               C．the              D．不填

— I’ll return the book to Mary, but I can’t find her anywhere.

  —She ______ the teacher’s office. You can find her there.

A. has left       B. was away         C. has gone to         D. has been to