To have some knowledge of a foreign language is a must for people nowadays.还有must为什么前面可以加a 难道可以为名词吗

I Have Some Want To The moon and the stories about it have always_people.In ancient times,people imagined pit to be a sort ofparadisefor living being.Since 1969,a number of_have been sent to the moon.Scientists have so far found no_of life.But we have got more knowled knowled is power. 帮我改下语法错误!急在线等According to the survey reflect: People need to have a good personal hygiene habits that contribute to the prevention and treatment of disease. Through this survey we know that people understand the health knowled some people have an objection to tea Some things really do not have to I have some f____ to ask you Some dogs j( )know to have fun have some other things to tell you I have some old book to do i have to hand in some papers excuss me.i have to catch some Do you like to have some some _________(fish) SOME WORK的意思I HAVE TO DO SOME WORK I want to have some coffee._____ _____you______to have. Do you want to have some bread?=___ you ___ to have some bread?填空, Would you like to have some bread?(同义句)( )you( )to have some bread? have some favor to do i have some favor to ask him