改错题 为何把find 改成finding?原句：To begin with,big cities are becoming so crowded that it makes find a job difficult.为何要把find 改成finding?理由是什么呢?

改错题 为何把find 改成finding?原句：To begin with,big cities are becoming so crowded that it makes find a job difficult.为何要把find 改成finding?理由是什么呢? Did you found XXXXX(something) yet 哪里错了今天考试改错,我把found改成了find.不过我同学说应该把did改成have. 为何要把cry改成crying呢?有一道改错题,其中一句是“He went cry to his mother,……”答案把cry改为crying为何呢?有go doing 的结构么? She offered a reward to who would find her lost ring.改错：如果不把who 变成whoever 为何行不通 请问一道SAT中的语法改错题chess players find that playing against computer is helpful to improve their skills,even though no chess-playing computer has yet won a championship.为什么要把 to improve 改成 in improving呢? Thank you for help me.改错题除了可以把help改成helping之外可不可以把for改成to? An evening he invited several friends to dinner.请问为何要改成one evening.是个改错题. the weather is even bad today.改错题把even改成very Yesterday,I am busy.改错.把am改成什么? SAT改错题.为何答案选A,C为何不行? 英语改错I didn't my homework yesterday.错误___ 改正为____Who find it just now?错误___ 改正为____还有请问He is waiting for you three hours ago.是不是把is改成was? yesterday,he answered a phone that told him his father would come.这是道改错题,把answered 改成 got ,为什么? 一道改错题His dog,that was now very old,became ill and died为什么要把That 改成 Which Do you like biscuits?Do you want it?改错题.答案把it改为one为什么?改成any可以吗 in my computer和on my computer的区别改错题把in改成了on，为什么 一道改错题.Those their photos were chosen the best were given unexpected prizes .为什么要把 Those 改成 Whose? He set up a company researching the computer software.改错题,为什么要把the改成this? 英语改错题,这题为什么要这样改呢?1.On mental tests,she discovered,half to two-third of the people in their 70s were as intellectually agile like people in heir 30s.(为何要把two-third 改成two-thirds?)2.