问题
选择题
I have to _____ for the math test. [ ]
A. study
B. studying
C. learning
D. studied
答案
答案：A
搜题请搜索小程序“爱下问搜题”
I have to _____ for the math test. [ ]
A. study
B. studying
C. learning
D. studied
答案：A
