they are all the mathematics students为什么要加the呢?

all the way till they are The shorts are the bestof all,but they are dear . they[ ]the classroom now.are cleaing all are all cleaning all are cleaning all the choldren are very happy.they are singing anddancing. Are ( ) in the car now Yes,they are.A.the all thingsB.all the thingsC.all thingsD.all the thing Are they all right They are all right. Are they all right? where are they all look,() students are happy at school A.the all B.all the C.they all 改错All of they are famous players in the world though all day they are in the sky怎么翻译 They all are working hard on the farm 改错 They are busy ____(skate ) all the morning. They're all small apples.Where are the big___(one)? All the policemen are very ---------/breiv/ when they catch thieves . The people are all doing different things they are all b____ The twins ____athletic .They both likes sports .A are all B both are C are both D all are