问题
选择题
—Did you return Helen's call?
—I didn't need to _________ I'll see her tomorrow. [ ]
A. though
B. unless
C. when
D. because
答案
答案:D
—Did you return Helen's call?
—I didn't need to _________ I'll see her tomorrow. [ ]
A. though
B. unless
C. when
D. because
答案:D