题目

My daughter，Vanessa was 10 years old．One day I found her ____.I called her name, _____she didn't answer. I went to her and asked her what was ______.She was wearing her daddy's earplugs （耳塞） and that was why she didn't _____ me. She told me that she wanted to see what it was like for her friend, Kim, not to be _____to hear. She was crying _____ she realized that Kim could not hear the birds sing, or listen to the music on the radio. She can't_____ hear her Mommy's voice, she said． We discussed ways Kim could communicate. The best one was the use of sign language. Vanessa became方程4x2-4=0的解是______．