It's+ adj+to do 六个句子not.until 六个句子

it's difficult to learn English. Mary didn't go to sleep until her mother came in

It's hard to play football well
It's diffcult to try again
It's easy to have a rest
It's hot to do some sports
It's cold to feel ice
It's relaxed to listen to music
I haven't done my homework until sleep
I didn't have dinner until my mother come
I shouldn't do that until you call me
I can't go to bed until the lamp break
I don't want to sleep until finish my work
I mustn't swim until my illness become better

it's easy to do the homewoek.it's difficult to do the job.it's important to finish the work.it's helpful to take a walk.it's useful to read the newspaper.it's happy to hold a party.i didn't sleep unti...