Can Kate to the party?

I’ll do it _____ a minute. [ ]

Is the cotton produced _____ your farm, Mr Black? —Yes, we also grow tea and wheat here. [ ]

What did you do yesterday?—My brother took two friends of ________ to play chess with us. But I don’t’ know _______ of them.

Can you give me a hand?—Sorry, I can’t help you do this because it is ______ my ability.[ ]