He could not __________ a right answer, so he felt very sad. A. think about B. come up with C. think...
2022-12-04 11:09:30 169次 2015-2016学年湖北宜昌八年级下期八校（3月）联考英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
He could not __________ a right answer, so he felt very sad.
A. think about B. come up with
C. think over D. think to
本题链接：
