题文
The boy is busy ________ tomorrow’s lesson.
| A．worked on | B．preparing for |
| C．to work for | D．getting preparing to |
The boy is busy ________ tomorrow’s lesson.
| A．worked on | B．preparing for |
| C．to work for | D．getting preparing to |
试题篮
()
粤公网安备 44130202000953号
