11.He said ''if the weather is good , i will go out 12.Lan said to Nam: " I will help you if you try hard " 13." if I were you, I would study try hard" he said to me 14." if you had come here yesterday, I would have given you a present'' , he told the girl 15.He asked me: " What would you do if you had more free time ?" 16." They would be very disappointed if you did not come, " the man said to his daughter 17."I'm sure they will understand if you explain the situation to them" the boy said to the girl 18.The man said to the girl:" I will visit you tomorrow " 19.He said "Lan, if you didn't want , I wouldn't come here " 20." what will you do if you meet him?" she asked me Giúp em với ạ đang cần gắp