高等继续教育 / 英语语法
正确率：100%
题型描述: 单选题
—Did you return Fred’s call? —I didn’t need to _ _ _ _ I’ll see him tomorrow.
A.though
B.because
C.unless
D.when
—Did you return Fred’s call? —I didn’t need to _ _ _ _ I’ll see him tomorrow.
A.though
B.because
C.unless
D.when
参考答案：