是an important thing还是a important thing

是an important thing还是a important thing 英语语法请教:a very important thing 还是 an very important thing Learning English is an important thing改为感叹句 Learning English is an important thing改为感叹句 动词做主语时用Ving形式 如Looking after yourself is an important thing.那么在句子之前加 I think呢,还用不用 Ving形式?是不是变成 I think look after yourself is an importany thing? an important thing that u learned from your parents这个thing可不可以是技术,才艺之类的?还是必须是品德上的,深奥的东西?（北美09.4.3） About English grammarThis is important to me.or for me?This is an important thing to me.or for me? I have an important thing to tell you.什么意思快点啊~越快越好 water is an important thing to us这句话有错吗(⊙_⊙)? What an important thing it is to keep our promise英语怎么翻译 The world is coming!Bumping is an important thing 怎么译 This is very important Thing THE MOST IMPORTANT THING怎么样 首字母填空 In many situations,a tiny thing can be c______ to an important event.指千里之堤溃于蚁穴 the most important thing to keep in mind when dealing with an emergency is to stay calm What an important thing it is to keep our promise!这句句子怎么看,求结构分析! hold an important position是固定搭配么?stand an important position 可以么? 各位大哥大姐们,英语好的帮我写两篇英语作文,题目分别是My dream,不少于二百字的,还一个是The most important thing in my life,一共六十分.后天要交,