题目内容
句型转换
I usually call on him once a day.
(就划线部分提问)________ ________ ________ you usually call on him?
答案:How,often;do
练习册系列答案
相关题目
题目内容
句型转换
I usually call on him once a day.
(就划线部分提问)________ ________ ________ you usually call on him?