The machine is easy to _______if you follow the instructions.
| A．be operated | B．operate | C．be operated on | D．operate on |
相关知识点
推荐试卷
The machine is easy to _______if you follow the instructions.
| A．be operated | B．operate | C．be operated on | D．operate on |
试题篮
()
粤公网安备 44130202000953号
