he tried his best to save the drown girl,but unfortunately s

he tried his best to save the drown girl,but unfortunately s The farmer tried his best to save the()horse at first,but th the doctor tried his best to save the patient's life,___fail The doctors tried their best to save the patient's life,＿＿fa The doctor tried their best to save the old man"s life,_____ he is a little weak in this but he tried his best to catch u He tried his best to quit smoking but he failed.这个句子对吗?为什么 He is a little weak in this ,but he has tried his best to ca He tried his best,but he still failed the exam.这个句子改成同义句. 20.-----for a long time,but he tried his best to catch up wi The young teacher tried his best,but he still could not make the doctor has tried his best,but he doesn't____ any hope of