Answer:
1. Un+true=Untrue (it means that a statement is not true)
2. Re+pay=Repay (it means that you have to pay for something you bought again)
3. Re+know=Reknow (it means to know or understand something again)
4. Dis+obey=Disobey (it means that someone is not obeying or following the other person)
5. Re+charge=Recharge (it means to charge something again)
6. Re+play=Replay (it means to repeat or play something again)
7. Im+polite=Impolite (it means that someone is not polite or rude)
8. Un+kind=Unkind (it means that someone is not kind or harsh)
Explanation:
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