高等继续教育 / 大学英语语法
正确率:100%
题型描述: 单选题
Bill has a hard time ____ the new language.
A.at learning
B.to learn
C.learning
D.for learning
Bill has a hard time ____ the new language.
A.at learning
B.to learn
C.learning
D.for learning
参考答案:
佳题速递: