Danny has worked hard for long to realize his dream and now he is popular.答案是has worked ,我什么不是worked呢?他现在成名,相对地,应该是以前努力了啊,

请教一道 英语题,谢谢Danny——hard for long to realize his dream and now he is popular.为什么用现完has worked不用过去式 worked Danny has worked hard for long to realize his dream and now he is popular.答案是has worked ,我什么不是worked呢?他现在成名,相对地,应该是以前努力了啊, Danny has worked hard for long to realize his dream and now he is popular.请问不定式 to realize his dream在句子中做什么成分?为什么? danny Danny 几个关于初中英语奥赛的题目跟据首字母提示,填单词 1.every one must keep our e______ clean and sun .2.she has a lot of k_______,we call her Dr know.3.Mrs Read has a medium b_________.4.they can do it by t_________.5.i worked har 请教一道英文习题,Danny ___ hard for long to realize his dream and now he is popular.这一题的正确填词是has worked,为什么不能填had worked?现在他已经成名了,那么努力就应该是过去一段时间发生的事情.另外 Danny has anew cap.(否定句,意思不变) Danny has tomatoes for dinner yesterday (一般疑问句） .His father since he__________.A.has worked,came B.has worked,works C.worked,has.His father since he__________.A.has worked,came B.has worked,works C.worked,has come D.haswork,came 填哪个? He has already worked for() hour. He has worked there (s) last year has been worked和has been working的区别 he has worked at...和he has been worked at..有什么区别?哪个对呢? -How long has his father worked in that city?-he has worked there s___ last year. It has worked well in controlling China's population.中的 has worked well 是不是语法点, The boy has short,brown har.对 short,brown hair 提问_____ _______ of hari does the boy have. 求一道选择题目,并说明理由Joanna was tired.She_______ all day.works worked has worked had worked