Rewrite the following sentences (1,25pts) 1.Shanghai World Financial Centre is higher than Keangnam Tower. Keangnam Tower is .................................... 2.In summer, Da Nang is hot but Vinh is hotter. In summer, Vinh is ....................................... 3.It is wrong of us to throw rubbish. We mustn’t ................................................... 4.It is necessary for us to be present at the class discussion on Saturday. We must ..................................................... 5.Ha Noi is large, Bangkok is larger and Tokyo is the largest. Tokyo is the............................................. three cities.