一.将下列句子改为否定句.
1.Jackhasanewtelescopeandamask.
2.Theydotheirhomeworkathome.
3.MarydoeswellinChinese.
4.LilystudiesJapaneseatschool.
5.Allthechildrenlikepiayingfootball.
6.Jackisalwaysfirsttocometoschool.