13. On a space station, astronauts sleep in their sleeping bags and tie it to the wall.

       A                                               B          C                                      D

14. Children nowadays use smart devices everywhere and rarely play to one another.

                                       A                 B                                   C             D

15. Meals in space is very different to the ones at home.

                 A           B                        C         D

16. We might shopping online and drones will deliver our food in the future.

                             A                            B                          C                D