--Boys and girls , wait for a moment !
--OK. We can’t cross the street ________the traffic lights are green.
| A．until | B．after | C．while | D．for |
--Boys and girls , wait for a moment !
--OK. We can’t cross the street ________the traffic lights are green.
| A．until | B．after | C．while | D．for |
试题篮
()
粤公网安备 44130202000953号
