Many students don't know the importance of study ---they leave schoolB until C,unless选哪个?

Many students don't know how___(learn)English well Most students don't like too many t_____ at school. 同义句Many students don't know they can remember words.Many students don't know ___ ___ __ words. many students feel s_ in class,because they don't have enough sleep 改一般疑问句 Many students in our class like English a lot,but I don`t like it at all Many students don't know the importance of study ---they leave schoolB until C,unless选哪个? Most students don't have ____free time?A.lots of Ba lot of Cmuch D.many请说明原因, Students don't go to ( ) Sundays the students don't like____(do) homework I don't have_____ homework today.(many) love many girls equal don't love don't eat too many sweet s Don't eat too many s___. Many trees don’t have any leaves. How many students are there in your class? ____ I don't know where they have gone .(none还是no one)急急急急急... 疑问句变陈述语序.I don’t know.How many students are there in his class?（把这两句合为一句） Many teachers don't want their students to ____ doing too much homeworkA.keep busyB.be kept busyC.keep busyingD.be kept busying 英语填空many students read storybooks () funall the toys in the stoer are cheap and nice.I don't know which to c()