问题
选择题
_____ paper is really easy. [ ]
A. Recycle
B. Recycled
C. Recycling
D. Have recycled
答案
答案：C
搜题请搜索小程序“爱下问搜题”
_____ paper is really easy. [ ]
A. Recycle
B. Recycled
C. Recycling
D. Have recycled
答案：C