I used to drink a lot of tea but these days I ＿＿coffee.A. preferB. preferredC. have prefer

问题补充：

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

A. prefer

B. preferred

C. have preferred

D. am preferring

答案：

(答案→)A. prefer

B. preferred

C. have preferred

D. am preferring

解析：此题选A表示现在的特征或状态。prefer属表示心理状态的动词，不能用于进时。