题：He has failed three times,he wants to try（ ）time.A.four B.a forth C.the four D.the fortha forth,但是为什么不选D.按分析,他已经失败了3次,他想要尝试第四次,也是可以说的过去的,为何就要为他想要再一次

He has failed several times . He is(confidence)__even though he has failed several times. Aithough he failed,he has done his___(well) He is (confidence) ________ even though he has failed several times.翻译 He didn't give up the plan though he______many times.为什么要填has failed呢?还是had failed Don't( )（看不起）a student only because he has failed in an exam i no longer ____ (believe/believe in)him because he has failed too many times 对括号部分提问 对括号部分提问She plays the（ piano for 2 hours）.Thre（ lots of books） on the desk.He has got some（ American books.）He does his homewoek (everyday) He can hardly believe the fact that he has failed in the exam.(完成反意疑问句）He can hardly believe the fact that he has failed in the exam,______ ______? 高中英语单句改错急!Although he has tried every mean to solve the problems ,he failed in end. i wonder 句式I wonder why he has failed his examination.这句话是对的,但是为什么不能写成这样呢.I wonder why has he failed his examination. he failed in the examination , As winter______ spring,the days began to lengthen.A got down to B took the place of C got along with D gave away toNo matter how many times _______,he sticks to it.A has he failed B he has failed C he failed D he had failedBeing a salesman of a big c 【初二英语】He tried ___ ___ smoking several timess,but failed.他多次尝试过戒烟,但失败了.He tried ___ ___ smoking several timess,but failed.他呼吸有困难.He has ____ ____.一空一词 1、He is stronger than I.（改为同义句） I am not ______ _______ ______ he.2、Action movies are more exciting than documentaries.（改为同义句）Documentaries are _______ ________ than action movies.3、Jim has two pen pals.Tony has thre He has failed several times ,but he won't _____.请选择 A go on B come on C get up D give up The reason ________ he is unhappy is ________ he has failed the exam．A.which; because B.for that; that C.why; that D.for; because 请问pattern detection has failed是什么意识?