问题补充:
—Would you like to go hiking with us this Sunday?
—Sure, I am busy.
A. until
B. when
C. unless
D. since
答案:
A. until
B. when
(答案→)C. unless
D. since
解析:根据文章的意思,C符合题意。
时间:2020-04-02 20:08:28
—Would you like to go hiking with us this Sunday?
—Sure, I am busy.
A. until
B. when
C. unless
D. since
A. until
B. when
(答案→)C. unless
D. since
解析:根据文章的意思,C符合题意。