parents cant expect advertisers (understand /to understand) that marketing products to children boreders on the unethical
에서 답이 to understand 인데
parents cant expect (that) advertisers understand that marketing products to children boreders on the unethical
으로 understand도 되지 않나요
뉴텝스 p63 2번
2
to understand 뒤에 that이 또 있음
that절 안에 that절은 어색함