1.dave is very___.tom is___than him,but tony is___of the three,(tall)
tall,taller,the tallest
2.which is___(big)
the biggest
3.wuhan is one of___(big)cities in china
the biggest
4.in my family,my mother is___(busy)
the busiest
5.it has___(bad)clothes in town
the worst
6.i think math is___(important)of all the subjects
the most important
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