1. How should I know? (¾î¶»°Ô ³»°¡ ¾È´Ü ¸»ÀÌ¿ä) 2. You should study harder. (³Ê´Â °øºÎ¸¦ ´õ ¿½ÉÈ÷ Çؾ߰ڴÙ) 3. I asked him if I should bring him a drink. (³ª´Â ±×¿¡°Ô À½·á¸¦ °¡Á®¿Ã±î¿ä ÇÏ°í ¹°¾ú´Ù) 4. He insisted that nothing should start till he arrived. (±×´Â ÀڱⰡ µµÂøÇÒ ¶§±îÁö ¾Æ¹«°Íµµ ½ÃÀÛÇÏÁö ¸» °ÍÀ» ÁÖÀåÇß´Ù) 5. I should hardly tell him generous. (±×¸¦ °ü´ëÇÏ´Ù°í ¸»ÇÒ ¼ö´Â ¾øÀ» °Í °°½À´Ï´Ù¸¸)