The student thinks it necessary to learn English grammar.这个句子的it 后面为什么没有be动词呢

(compared with)other students,the teacher thinks,hank is a diligent student为什么不是comparing with 反义疑问句中有宾语从句四道题I think he is a student,（）?I don't think he is a student,（）?He thinks I am a student,（）?He does't think I am a student,（）? I don't like hypocritical,affectation,thinks of the boys 反意疑问句 I think he is a good student ,isn't he? He thinks I'm a good student ,doesn't he?急. 高中英语作文I am the best student The student thinks it necessary to learn English grammar.这个句子的it 后面为什么没有be动词呢 I returned the story book to the student.=I_____the story book_____to the student. I am the student.和i am a student的区别 I'm a student from the China.为什么去掉the? the student the student 选出错误并改正1.Jack asked Li Lei and I not to talk2.He thinks you are the best student in the class,are't you?3.He was fast sleep in ten minutes.4.Do you agree that do chores is tiring?5.Are your parents delight to see you get good grades?6.T 同一类型的都是,我糊涂了~81.he often helps the student __he thinks are not quick at their studies.a .whom b.who这道题为什么选who不选whom呢?93.__comes to see me ,tell him i'm out .a.anyone b.whoever,这是个名词性从句吗?不 Please tell me I am NOT the only person that thinks this.什么意思? I (tell) that the exchange student will arrive soon 改同义句I think Tom is the youngest student I am student so usend 2 the wrong person. I am student so usend 2 the wrong rperson.