题文
---___________ do they visit their old friends?
---Once a year.
| A．How long | B．How often |
| C．How many times | D．How much time |
---___________ do they visit their old friends?
---Once a year.
| A．How long | B．How often |
| C．How many times | D．How much time |
试题篮
()
粤公网安备 44130202000953号
