精英家教网 > 初中英语 > 题目详情
You will not remember the facts _____ you understand them all.

A. if
B. unless
C. if not
D. because
相关习题

科目:初中英语 来源:期末题 题型:单选题

You will not remember the facts _____ you understand them all.
[     ]
A. if
B. unless
C. if not
D. because

查看答案和解析>>


同步练习册答案