问题
选择题
| The lawn will turn brown unless _____ frequently. |
A. watered B. watering C. water D. to water |
答案
答案：A
搜题请搜索小程序“爱下问搜题”
| The lawn will turn brown unless _____ frequently. |
A. watered B. watering C. water D. to water |
答案：A
