选 择 ------ her carefully ,but I --- --nothing .见下面补充

选 择 ------ her carefully ,but I --- --nothing .见下面补充 改错I listened carefully,but nothing heard. I __ very carefully,but I can ____ nothing. I listened carefully but I heard nothing各个单词在句中起什么成份? I ___ carefully but i ___ nothing.A hear,listen B listens,he my mom () carefully,but she () nothing 单项选择： She ... carefully , but shi ... nothing. Tom ______ carefully,but he________ nothing. I looked carefully but saw nothing 我注意看了但是什么也没有看到 I want nothing but He ____ the radio carefully,but he ____ nothing. I always______the teacher carefully,but I