Exercise 4 1/ They were more tired yesterday than today.  Today they ........................................................ 2/ Mr Hai is a good driver.  Mr Hai drives ..................................................................................... 3/ English isn't so difficult as Maths.  Maths is ......................................................................... 4/ His brother is not so good at French as him.  He is ............................................................... 5/ His role is more important than mine.  My role ...................................................................... 6/ I can't swim as well as Jane.  Jane ........................................................................................... 7/ No one in my class is noisier than Lan.  Lan is ........................................................................ 8/ We didn't do the test as fast as Linh.  Linh did ........................................................................ 9/ Peter can't run as far as Tim.  Tim runs ................................................................................... 10/ My kitchen is smaller than yours.  Your kitchen ................................................................... 11/ Phong speaks English more fluently than I do.  I ................................................................. 12/ She is a dangerous driver.  She ............................................................................................... 13/ Hoa is a careful typist.  Hoa ..................................................................................................... 14/ Mary dances marvellously.  Mary is ...................................................................................... 15/ Celine Dion sings wonderfully.  Celine Dion is ..................................................................... 16/ Lien is a good speaker of English.  Lien speaks ...................................................................... 17/ We don't know a lazier person than her.  She is ...................................................................... 18/ Nothing is more interesting than football.  Football is ........................................................... 19/ I am 20 years old. My brother is 40.  My brother is twice ...................................................... 20/ Everest is higher than any mountains in the world.  Everest is .............................................. 21/ Minh is the most hard-working in our class.  No one ........................................................... 22/ You have more money than us.  We ....................................................................................... 23/ Mr Robinson is the poorest person in our town.  No one .......................................................