问题
选择题
If you see any litter on the playground, you'd better .[ ]
A. pick up it
B. pick it up
C. go away
D. not touch them
答案
| B |
搜题请搜索小程序“爱下问搜题”
If you see any litter on the playground, you'd better .[ ]
A. pick up it
B. pick it up
C. go away
D. not touch them
| B |