they have much homework to do.中为什么是to do?而不是do?什么是动词不定式?什么时候用动词不定式?

have they got much They have read little,but they have much experience. They have much homework____(do)this evening. They have much flour in the bowl. m;they are building a new shopping mall near my homew;not another one The students in our school have ( ) off and spend ( ) time doing their homew They have much fun ______(play)basketball.是填空 They have made much progress__(用）their hard work. they have too much rules in their school怎么改错 They have done_____[much]work with_____[little]mony怎么做 they have much homework —— (do)now they don't have much money改为肯定句 they did not have much money改同义句 they have ____（much ）money than me they have much to be thanked是否正确? they could't have achieved so much.so much是副词吗 They have done ____ work these days.too much much too too many many too We have ______ homework and ______ too difficult. A. too much; they’re B. too much;it’sC.much too;it’s D.much too; they’re