We will begin the banquet at 8pm,unless the guest of honor is late,___________we will begin when he has arrived.

여기서 빈칸에 답은 in which case 인데요

In case of which가 안되는 이유는 뭔가요..???



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Insurance providers often refuse to offer coverage to people__________.

여기서 답은 that have specific medical conditions 인데

Of specific medical conditions는 왜 안되나요?