4. A: How long ? (you, be, sick) B: I since last week. (be, sick)

	A: How long have you been sick? (you, be, sick) B: I have been sick since last week. (be, sick)
	A: ¾ÆÇÂÁö ¾ó¸¶³ª µÇ¾ú¾î? B: Áö³­ÁÖ ÀÌÈÄ·Î ¾ÆÆ;î.