I used to drink a lot of tea but these days I coffee.A. prefer B. preferredC. had prefer

问题补充：

I used to drink a lot of tea but these days I coffee.

A. prefer

B. preferred

C. had preferred

D. am preferring

答案：

(答案→)A. prefer

B. preferred

C. had preferred

D. am preferring

解析：此处prefer意为“宁愿”，是表示人心理状态的动词，不宜用现在进行时态。