英语一道题目Some middle school students have always been studying hard because they (are dreaming about )going to universities.为什么是are dreaming about?不可以是dream about?请详细解释,谢谢!涉及到什么语法?

英语一道题目Some middle school students have always been studying hard because they (are dreaming about )going to universities.为什么是are dreaming about?不可以是dream about?请详细解释,谢谢!涉及到什么语法? 一道英语题目,求讲解 Xi'an is a city in the _____ of China一道英语题目,求讲解Xi'an is a city in the _____ of ChinaA.middle B.center C.front D.back求讲解 一道英语的题目 一道英语七选五题目, 求助一道英语题目 一道英语题目阅读 翻译英语作文,谢谢Most of middle sc hool students agree that school life is rich an d colorful and learning is very interesting and enjoyable .However,some of the students,eit her in cities or in the countryside feel tired of t heir study at s 一道英语被动语态题目You can't really expect the problem________(slove)without some effort.被动语态填空 the first day in middle school一片英语作文，题目是the first day in middle school，或者讲讲怎麽写 middle school英语作文 英语middle什么意思 英语改错题,就一道 Beijing is the politcal middle of China.F5已烂 问一道英语题目,老师来you need some advice from a _____ if you want to have healthy skin(special) 问一道高中的英语的题目 一道智力数学题,题目用英语表达 问一道高中的英语的题目 一道英语题目 好心人帮帮忙啊 这一道英语题目怎么写