题干
—Could I use your computer, Dad? —Sorry, you _______. I'm going to work on it.
A：wouldn't
B：can't
C：needn't
D：don't have to
答案(点此获取答案解析）
B
—Could I use your computer, Dad? —Sorry, you _______. I'm going to work on it.
A：wouldn't
B：can't
C：needn't
D：don't have to
