Alan has to finish the work before 9 a.m(改为一般疑问句）___Alan ___to finish the work before 9 a.m解释下为什么填Does have

I don't have a soccer ball ,but my brother Alan does 为什么不是Alan has. Alan has to finish the work before 9 a.m(改为一般疑问句）___Alan ___to finish the work before 9 a.m解释下为什么填Does have Yesterday Mary couldn't finish her homework,so she has to go on 什么 it this 1.I can't finish the project if don't help me.(同义) I can't finish the project ____________.2.Don't give the boy any help,He has the _______(able) to finish the work. He has to finish the work this afternoon,__?A has he B hasn't he C does he D doesn't he Yesterday Mary couldn't finish her homework,so she has to go on ___ it this afternoon.(do) You can't watch TV before ------your homework.a.finish b.to finish c.finish He has to finish his work,so--- I Alice has to finish her homework now 改为反义疑问句 I don't have a soccer ball,but my brother Alan does.为什么用does不用has、、、求解 1.Tom has no time-----the job.(选择） A.finish B.to finish C.finishing. alan Next time don't forget ()your dictionary to school,Alan.A.to bring B.bring C.to bringing D.bringing John,you can’t go out to play until your homework ____ (finish）用has been finished可是finish是瞬间动词啊?不是瞬间动词不可以用于完成时态吗 Alan don't want to stay athome,and he wants to play outside.(找出错误的并改正) 1.It takes me about fifty minutes the work.A.finish,B.finishing,C.to finish,D.finishes.2.It takes Alan _three_days_to read the book.(对划线部分提问） 关于have to句型1.Mary has to ______(wear) her uniform at school.2.Tom and Mona have to _______(be) in bed by 10:00.3.What about _______(take) a walk after the party?4.Thank you for _______(join) our talk show,Alan.5.You don't have to _______(ask) He often has lunch,And he has to finish the work in 2 hours,A does he,does heB doesn't he,doesn't he c hasn't he,hasn't heD has he,has he如果可以 帮忙讲解下现在完成时的用法 有些不懂