| A | B |
| unsafe | It is _______ to ride without a seat belt. |
| preheat | I need to ________ the oven to get it ready for the cookies. |
| rerun | That cartoon is a ________. |
| disappear | I saw the boy _______ behind that door. |
| unlock | Please _______ the gate. |
| retie | The little girl asked me to ______ her shoelace. |
| rewind | I had to ________ the move so that we could watch it from the beginning. |
| unpack | We haven't had time to _______ our suitcase. |
| unplug | Mom asked me to ______ the tv set during the storm. |
| regroup | After we messed up, the coach had us _______ and try again. |
| preschool | My little sister is going to ________. |
| disagree | I think the judge is going to _______ with my answer. |
| prehistoric | Dinosaurs are ________ animals. |
| unfortunate | It was __________ that it started to rain before our important game. |
| reunion | Every year we have a family _______. |