I’ll stay in Moscow three days. I’ve come here to do some business ___ you. We are going to buy a lot foodstuffs you.

I’ll stay in Moscow for three days. I’ve come here to do some business with you. We are going to buy a lot of foodstuffs for you.

I’ll stay in Moscow for three days. I’ve come here to do some business with you. We are going to buy a lot of foodstuffs from you.