问题
选择题
-What are you __________?
-I'm preparing for my math test.[ ]
A. cooking
B. going
C. up
D. up to
答案
答案：D
搜题请搜索小程序“爱下问搜题”
-What are you __________?
-I'm preparing for my math test.[ ]
A. cooking
B. going
C. up
D. up to
答案：D