问题
选择题
—May I surf the Internet now?
—No, ______ you have finished doing the dishes. [ ]
A. unless
B. if
C. because
D. when
答案
答案：A
搜题请搜索小程序“爱下问搜题”
—May I surf the Internet now?
—No, ______ you have finished doing the dishes. [ ]
A. unless
B. if
C. because
D. when
答案：A