问题
选择题
Lucy spent three years _______ Chinese before she came to China.
A．on learning
B．to learn
C．learning
D．Learn
答案
答案：C
此题重点考查固定句型结构sb spend some time in doing sth表示某人花费多少时间做某事，其中in可以省略。
搜题请搜索小程序“爱下问搜题”