he doesn't know (what should be taken) to start a business here. 是正确的吗?what此举中可当主语吗?

英语翻译he doesn't know _____________ He doesn't know BeiJing verywell He doesn't love me,I know. He doesn't know when ____(leave) here; He doesn't know when he___(leave) here 同义句He doesn't know me.He doesn't know _______ ______ ______. He still doesn't know和Still he doesn't know的区别 He doesn't know what he will say. He doesn't know the answer t the question doesn't want to know that which she is eager to know.这里为什么用which 而不用wha而不用what? he doesn't know what can he wear today.同义句 . He doesn't know what 横线 横线 today. He doesn't know where he can go.(同义句) He doesn't know _____ ______ ______ . he doesn't know how he can get it(改为同义句) he doesn't know how______ ______it He doesn't know how he can get it.改为同义句 He doesn't know how ( ) ( ) it. He doesn't know how he can get there?(同意句）He doesn't know ______ _______ _______ there. He doesn't know much Chinese.(同义句)5555. He doesn't know ___(该做什么). He doesn't want to l____ the other children know. he doesn't know how to do next（改错）