Mike had just finished his lunch and was about to take a break _____ an unexpected visitor came.
| A．when | B．while | C．so | D．for |
相关知识点
推荐试卷
Mike had just finished his lunch and was about to take a break _____ an unexpected visitor came.
| A．when | B．while | C．so | D．for |
试题篮
()
粤公网安备 44130202000953号
