Решение:
В заданиях требуется употребить полную форму глагола 'to have', которая в данном контексте является 'have got' или 'has got'.
- I've got a radio. → I have got a radio.
- He's got two apples. → He has got two apples.
- They've got a sister. → They have got a sister.
- We've got four flags. → We have got four flags.
- She's got a brother. → She has got a brother.
Ответ: have got; has got; have got; have got; has got.