题目内容
—Shall we go out for a walk?
—Sorry, I can’t. I _______ my homework.
A. do B. did C. am doing D. was doing
【答案】
C
【解析】略
练习册系列答案
相关题目
—When shall we meet again?
—Make it _____ day you like. It’s all the same to me.
A.one | B.any | C.another | D.all |