It is written clearly in the requirements that all passengers _______ check onto board thirty minutes before the plane takes off．
| A．may | B．can | C．will | D．shall |
相关知识点
推荐试卷
It is written clearly in the requirements that all passengers _______ check onto board thirty minutes before the plane takes off．
| A．may | B．can | C．will | D．shall |
试题篮
()
粤公网安备 44130202000953号
