i'm afraid it'll_you much time to work out the problem.为什么填s

i'm afraid it'll_you much time to work out the problem.为什么填s it is ——for them to work out the problem by themselves 为什么填e I thought it( ) me to work out the problem. -Did you work out the problem?yes,I --to the teacher’s为什么hav I found it difficult to work out the problem.中it可以换成it's吗?为什 1.It's _for th buy to work out the Maths problem.It's too di it's to work out the problem there's no need to ask your tea I'm afraid there much这填什么 time left.Let's hurry. the problem looks (easy)but it's hard to work it out i can't work out the problem.it's too difficult同义句转换 i have It's ( )to work out this problem .You needn't go to the teac I find that it it hard for him to work out the problem.句型转换