1. A: How long ? (it, be, raining)
B: It since this morning. (be, raining)
A: How long has it been raining? (it, be, raining)
B: It has been raining since this morning. (be, raining)
A: ºñ°¡ ¿ÂÁö ¾ó¸¶³ª µÇ¾ú¾î?
B: ¿À´Ã ¾ÆÄ§ ÀÌÈÄ·Î ºñ°¡ ¿À°í ÀÖ¾î¿ä.