I have breakfast at 7:00. But it’s 7:20. I’m having my breakfast.A. usually / oftenB. oft

问题补充：

I have breakfast at 7:00. But it’s 7:20. I’m having my breakfast.

A. usually / often

B. often / usually

C. sometimes / often

D. usually / now

答案：

A. usually / often

B. often / usually

C. sometimes / often

(答案→)D. usually / now

解析：本题的前半句表示的经常性的行为，可用频率副词，本题的后半句表示的是正在进行的动作，通常和now连用，故本题选D。