The first thing you must remember is that in order to succeed, it is almost compulsory that you ____...
2022-10-25 13:23:52 151次 2016届江苏如东高级中学高三上学期期中英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
The first thing you must remember is that in order to succeed, it is almost compulsory that you ______ optimistic.
A. be B. are C. must be D. have been
本题链接：
