21. Do you remember it was on ____ Saturday night that you saw such ____ bright moon?
A. a; a B. the; the C. a; the D. the; 不填
22．—Have you got used to the Chinese food, Robert?
—Yes, but I don’t like ______ when a Chinese host keeps serving me the food I don’t like．
A. this B. that C. those D. it
