一、have been doing是过去完成进行式,表示动作在过去发生,持续到现在并且还在进行。而have been最常见的形式是have been done。 二、1.Nowadays, there many tall buildings here and there. 2.With the help of teachers and classmates, he decides to study hard. 三、easily. 被修饰成份是动词get的过去式got,需要用副词来修饰。 四、It take sb. sometime to do sth.
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第2个回答 2010-10-04
1:是have been to do吧。没见过have been doing的 have been to do是句子的过去完成时 意思是:已经做过…………… 当然have been to加地点表示去过某地。 2:Nowadays there are tall buildings everywhere. With the help of teachers and classmates, he decided to work hard. 3:easily easily是副词,这里修饰动词got。 4:当然是take sb sometime to do sth啦。
第3个回答 2010-10-04
一,have been do sth.二,1.Everywhere are the buildings now.2.In the end,he decides to study hard with teachers and classmates' help.三,easily.四,It take(took) sb.+钱或时间+doing sth./+in/on sth.本回答被提问者采纳