根据汉语提示以及所提供的英语单词完成句子，并把答案填写在答题卷相应位置上。
81.  ______________________________ (他日夜沉溺于网上聊天) so that his wife divorced him.
82.  _____________________ (毫无疑问) this advertisement is to________________ (吸引) children.
83.  ______________________________ (据说他整个上午一直都在帮忙) cooks in the kitchen all
84.   morning.
85.  ______________________________ (李华意识到有很多孩子辍学) because of poverty, so he gave
away his money to charities.
86.  Yesterday a cyclist was knocked down at the crossroads so my father
87.    _________________________________ (在上班的路上陷入交通阻塞).