[1~2] ´ÙÀ½ Á÷¼³¹ý ¹®ÀåÀ» °¡Á¤¹ýÀ¸·Î ¹Ù²Ù½Ã¿À.
1.
  I don't know his address, so I can't write to him.
-> If I his address, I to him.
 
   
 
2.
  I didn't see him the other day, so I didn't say hello to him.
-> If I him the other day, I would hello to him.
 
   
 
[3~5] ´ÙÀ½ ºó Ä­¿¡ µé¾î°¥ ¾Ë¸ÂÀº °ÍÀ» °í¸£½Ã¿À.
3. If it _____ true, what would you say?
(A) will be
(B) is
(C) had been
(D) were
 
   
 
4. If you had not called a doctor, Fred __________.
(A) will die
(B) would die
(C) would have died
(D) will have died
 
   
 
5. If he _____ later, let me know.
(A) will come
(B) comes
(C) came
(D) had come