The process by which carbon dioxide and water are (4) _______to sugar and oxygen using sunlight is referred to as photosynthesis.

(5) _________general, high school tends to be strict, as college and university admission is very competitive.

Afterwards, students can (4) _________between general education and vocational high schools.

The basic primary school curriculum is generally divided into eight subjects : the Korean language, social studies, science, (3) ________, ethics, physical education, music and fine arts.

The basic primary school curriculum is generally divided into eight (2) __________: the Korean language, social studies, science,  [...] , ethics, physical education, music and fine arts.

The Korean education system basically consists of primary schools, (1) ___________schools, high schools, and colleges or universities, with graduate courses leading to Ph.D degrees.

Sun (5) _________the energy needed to drive photosynthesis, and some of the energy used to make the sugar is stored in the sugar molecule.