请英语老师帮我检查一下以下的4个句子对吗?高中水平就够了,
1.Youmustfinishthisworktodayanyhow.
2.Isetupthecompanylastyearbutmybosstakeoveritnow.
3.Helpmetotakeofftheshirtandputontheskirtonher.
4.Let’slogontothewebsit,signinyournameandcodeatfirst,thendownloadthenewestversionfromnetandinstallthenewprogramonyourcomputure.