I think people littering should--a fine of 500 yuan A.cost B

I think people littering should__a fine of 500 yuan A.cost B.spend C.take D.pay
2.________
Because I'm learning English.
A.Why don't you fish?B.Why are you wearing shorts?
C.Why are you wearing a hat?D.Why do you want to buy a dictionary
3.Would you like a coffee or a cola?
I'd prefer a cola._________
A.I want one more.B.What about you?
C.Thank you.D.You're welcome.