Choose the best modal verb to complete the sentences. Use the full forms of the modal verbs.

Write one or two words in each gap.

has to, can, might, can not

[ ] you put the rubbish in the dustbin? (Request)

Mark [ ] beg for money because he has financial problems. (Necessity)

That red jacket [ ] be George's. He has only black jackets. (Impossibility)

It [ ] snow today. (Possibility)