Choose the suitable words or expressions to complete this passage: valuable, instruct, cure, expose, look into, examine, put forward, immediately, announce Li Heping was a famous football player, but his career came to an end when he became very ill
The doctor _________ him but could not find the cause of this illness
He ___________ the theory that Li Heping had been _______ to a new virus
He knew he would not be able to ____ him___________,examinedput forwardexposedcureimmediately but promised he would ________the possibility of finding one in the future
Sadly, Li Heping __________ that he would take up a new career to _______ footballers in planning for the future
instructlook intoannounced At his last match he thanked his fans for their _______ support by singing the popular son