考古学家发现，人类的祖先是（　　）

Dear Jenny,
   Please take these things to your brother: his math book, baseball, notebook, CDs, and video tape. The math book is on the dresser. The baseball is under the bed. The notebook is on the bed. The CDs are in the drawer. The video tape is on the table. Thanks!
                                                                                                                                                                            Mom

一字组多词

则____、____

昨____、____

纱____、____

羡____、____