I find __ interesting to learn English.A it B this C that D

I find __ interesting to learn English.A it B this C that D They find it __ to learn English.A、use B、uses C、using D、usef I find __ not essy to study math well. A.that B.it C.is D./ i find _____ boring to work with her.A that B this C it D th Did you find ____ hard to learn English?A、it B、it was C、it i I find-----not easy to learn math well A,this B,that C,what i found __ very hard to learn english well(A:them b:it is c: I find ( ) interesting to learn English. I find ___excitng to watch this movie.A it B it's C it is D I find it easy __(learn) English find ____ difficult to do the homework.A:that B:this C:it D: I find it interesting to learn English.为什么it后面不可加is.