______ until the lights have turned to green.
| A．Wait | B．To wait |
| C．Waiting | D．Having waited |
相关知识点
推荐试卷
______ until the lights have turned to green.
| A．Wait | B．To wait |
| C．Waiting | D．Having waited |
试题篮
()
粤公网安备 44130202000953号
