he tired many times ------ the right answer,but he didn't

he tired many times ------ the right answer,but he didn't --------He tried many times () the right answer,but he didn' He telephoned agin.but i didn't answer the phone! He didn’t answer the question right away.其中 right away是指正确,还 I knocked at the door (l ) of times ,but he didn't hear it. ( ) many times,but he still couldn't remember . ____ many times but he still couldn't understand it he was tired,and he wanted to have a rest,but Tom didn‘t （）T He didn't tell me the answer _________the question. He didn't give up the plan though he______many times. We didn't know the answer to the question that why he didn't He thought he had found the right answer,but that was not th