21. —Jane, which color do you prefer, red or blue?
—______. I prefer to buy a green one.
A. Either will be OK B. Both will be OK
C. To be honest, neither D. Generally, I’m not sure
22. —The price is fine with me. How would you like it to be paid?
—Just ______ cash, please.
A. by B. in C. with D. through
