Sắp sếp câu sau thành câu hoàn chỉnh
Children / go / the / may / school / to / high / if / pass / exam / the / they / of / 9 / grade / at / the / end
complete / grade / They / 12 / the / of /17 / at / age
Start / 1 / The / grade / children / the / of / 6 / at / age
Children may go to the high school at / the end of grade 9 if they pass the exam
They complete grade 12 at the age of /17
The children Start grade 1 at the age of / 6
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