China is making great efforts _________ people’s living standards（水平）. A. improve B. improving C. im...
2022-10-04 12:58:45 50次 吉林省2019届九年级上学期期末考试英语试卷 单选题 反馈错误 加入收藏 正确率 : 100%
题目内容：
China is making great efforts _________ people’s living standards（水平）.
A. improve B. improving C. improved D. to improve
本题链接：
