consent

必须得到父母双方的同意才能参加这次实地考察旅行。

Both parents must ___consent to the field trip.

未经业主书面同意，任何工作不得开始。

No work can begin without the written ___consent of the owner.

没有父母的同意，学生不能参加这次旅行。

Students cannot participate in the trip without parental ___consent.