---We all know that __________ a foreign language requires time and effort (努力). A. learnedB. learn ...
2023-01-19 17:51:49 62次 2014-2015学年江苏盐城实验初级中学九年级上第一次综合英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
---We all know that __________ a foreign language requires time and effort (努力).
A. learnedB. learn
C. learningD. to learned
本题链接：
