1.do you have a cheaper computer than this?
=>You dont't..have a cheaper computer than this,do you?...
2.how high is big ben clock tower?
=>What is the height of big ben clock tower?
3.how wide is the lest lake?
What is the width of the lest lake?
4.i don't like beef.my mother doesn't like beef,either
=>I don't like beef and neither does my mother
5.she is a teacher.IAm a teacher,too
=>She is. a teacher and so am I.