求教:用If...not 或 unless改写句子.

问题描述:

求教:用If...not 或 unless改写句子.

you will catch a cold unless you on your coat

unless you return the book to the library.you are not able to borrow more books

we will not have clean water if we do not prtect the earth

unless you study hard.you will not pass the exam

unless i save som money.i cannot buy anew computer

unless you go to the cinema tonight.you are not able to see the film

if you don't take medicine.you won't get better

unless you tidy your bedroom,your dad won't let you go out

if you don't go shopping,you don't have new clothes

if you don't finish school project,you will get a bad mark

you will not catch a cold if you put on your coat.If you return the book to the library,you will be able to borrow more books.we will not have clean water unless we prtect the earth.If you study hard ...