问题
I felt somewhat sad and was about to leave _________ something happened which drew my attention.
A:unless
B:until
C:when
D:while;
B:until
C:when
D:while;
正确答案是：
同类题型
What do you think of him— I hate people ____ talk muchbut do little.
Only_______ of the students_______ passed theEnglish exam.
lcano erupted violently , yetthe village at the foot of it should _________
Chinese students have_____weeks_____in the summertime than American students.
The boy __________ a full scholarship; otherwise he would never have been able to go to university.