用所给单词的适当形式填空．
It's very necessary for us ______ （learn） every subject well．
My brother ______ （become） a doctor five years ago．
Look! Your pet dog ______ （die）．
The little girl seems ______ （know） everything．
I think the news ______ （be） very interesting．
John was very ______ （lucky）．He broke his leg yesterday．
This shirt isn't as ______ （good） as that one．
Jack and Tom are the ______ （win）of the dancing competition．
I have ______ （little） water than you．
Who writes ______ （carefully）in your class ?