the student studies hard,but sometimes he haue had trouble with english我想知道这里为什么用have had

My brother is a student who studies in the school. He studies hardest in our class.He studies （ ） （ )( ) ( )student in our class.We were excited at the surprising result .The ( )result（ ）us.同义句转换He studies hardest in our class。He studies （ ） （ )( ) ( )student in our class the wey in while one student studies might be quite different from that of another student 译成中文 she studies,and she is the t___ student in our class Don't make the student _____so long.A study B to study C studies D studying 急为什么D不对40.Mary is the top student in the class.She studies harder .A.than any student B.than all the students C.than any other student D.than some other student the student studies hard,but sometimes he haue had trouble with english我想知道这里为什么用have had She doesn't want to give up her student·s studies even though suffering from the disease.student·s是不是应该改为students·；studies是不是改为study,因为study【u】学习,【c】书房 The diligence studies hard the student the student 英语翻译翻译句子：1.I felt that this was a gift that my father would truly appreciate.2.The harder a student studies,the his body gives off. Every student __________ hard.A.study B.studies C.studying Jack is a student and studies at the no.2 middle school.__.A so it is with Mike B so is Mike该选哪个 Milli is the top student in our grade.She does ____ in her studies.A.good B.well C.better D.best请说出理由 My classmate is a good student.She studies very h___her father is a cook.He can cook w___Listen,the birds are singing l___ The student ______ continuing his studies when he had to return to his home country unexpectedly.A.is considering B.was considering C.should consider D.has considered 谁帮我看看这句话我写的对吗?the benefits from student organization or club activities and from their academic studies are different yet equally important.