It's your ____ to clean the desks.Aturn Bturns Cturning Da turn

It's your ____ (顺序）to sing a song. you should listen to your teacher(同义句)It's ___ _____ ____ to listen to your teacher it s going to rain,____ ____? It's very ____ of you to lend me your bike.不能填“nice” It's ______(good) for your health to do ____(much) sport,.写出原因 It's better to keep ____ your voice in public places . It's your ____ to clean the desks.Aturn Bturns Cturning Da turn ____(使……升高)your hand .it's friendly to s____at others. it's ____ to go to work It's your turn.____.A.It's your line B.It's your rowC.You're next D.It's your chance it's so nice to hear your it 's time to plan your journeys? It's time to do your homework. It's your turn to read books. ____(not smoke) It's bad for your health ---My watch says it`s ten to eight.---Oh!I`m afraid your watch is five minutes fast.It`s ____ now. I think it's better ____ your voice down.A for you turning B to you turning C for you to keep D to you to keep It's bad ____ to speak with your mouth full of ____?第一个空manners为什么用复数?第二个空food为什么用单数?