Buses are also dirtier and more crowded 为什么不用比较级,比较级不是要加than吗?

buses that c____too many people are also against the law Buses that carry too many people are also against the Buses are also dirtier and more crowded 为什么不用比较级,比较级不是要加than吗? There are also many airport buses.(改为同义句)There are _ _ _ airport buses _.注意没有逗号,不能用too. Are they buses? These are buses单数急用 Olevo Dirti Che Ti What are those? A.These are buses B.Those are buses C.They are buses 选哪个? There are lots of buses and cars Are these cars or buses?回答 are lots of cars there and buses 英语句子there are not enough buses. 变为单数形式 are Chinese buses These are old buses.的单数句 The buses are always (crowd) on weekends. These are Chiese buses.变为单数形式 buses,picture,in,the,There,are, Buses are a popular means of transportation