【单选题】-------How many students are there in the classroom? ------- ________ .They are all on the playground.
【单选题】—How many students are there in your school? — ___________ the students in our school over two thousand. [ ]
【单选题】下列性质中,碱金属和碱土金属单质都不具有的是( )
【简答题】How many new students have been taken in this year? ______ new students.
【简答题】How many students are learning the leading 15 languages?
【单选题】____________ students are there in your class? [ ]
【单选题】下列性质中 , 碱金属和碱土金属都不具有的是