英语翻译___________is useful to learn English wellA THIS b that

英语翻译___________is useful to learn English wellA THIS b that I think——（this,that,it）is very useful to learn english well. 英语翻译How to Learn English WellEnglish is important and useful 英语试题,（1）I want to buy a book____how to learn English wellA.o 英语单项选择1.It is necessary for us　English　wellA learn B learnin To learn English is important and useful. I find __ interesting to learn English.A it B this C that D Is （ ） difficult to learn English well?A.this B.that C.he We found that it was very useful to learn English well.同义We I find that it is useful to learn English.it是形式主语, The girl found （）very useful to learn English well.A：it B:th why ( ) english? it's useful. A.not to learn B.not learning