They are ( ) students.A.thirteen years old B.thirteen-year oldC.thirteen-year-old D.thirteen-years-old求讲解部分.几个单词中的-有没有有什么区别.year 在什么情况下加S

They are both student.改同义句 they are all student与they all are student的区别 they are student in No.2 Middle School 翻译 你好、Are they student 改为单数句怎么改? Are they a student in our scool? 怎么回答 初三英语反义疑问句They are't student,are they?和They are student,aren't they?是不是相同的意思?回答的时候也是一样的答案? they are good student 和they are good students那句正确?还是都正确? 用they all student 造句they all are students.可以么?all应该放哪里? They are very comfortable and are popular among student改为同义句. These English books are the___(student).they are good at English They're are a student in our school.改写成一般疑问句:Are they a student in our scool?是对的吗 Many student are play football and play basketball.They are very happy.And they run.Many people a翻译 用括号里提示词的适当形式填空we are (student).you are .(teacher).they are (hairdresser) Many student in Chinese are learning English,aren't they?肯定／否定回答 They are very comfortable and popular among student.(该同义句) Every student likes his classes because they are very interesting 怎么翻译 They are studying hard than any other ______.A.students B.student 怎么把一般现在时改为一般将来时They are many new student in our class