Вставьте may might must и другие по смыслу слова  в предложения 
Kery_________________ some school rules.
Perhaps Kerry wears a school uniform.
Kerry_________________a school uniform.
I m sure Kerry has computer lessons at school.
Kerry_________________computer lessons at school
Perhaps Kerry s school is not very big 
Kerry s school _________very big
I m sure Kerry is a pupil of a London school because she lives in London
Kerry_________________a pupil of a London school

Kery must knews some school rules.Perhaps Kerry wears a school uniform.Kerry must wears a school uniform.I m sure Kerry has computer lessons at school.Kerry may has computer lessons at school.Perhaps Kerry`s school is not very big.Kerry`s school may be very big.I m sure Kerry is a pupil of a London school because she lives in LondonKerry might was a pupil of a London school.