——What do you suppose made her look so upset?——----by her bo

你猜猜是什么使得她看起来这么不安?再一次被他男朋友误解。下面是我引用别人的举例,我也学习了。如果我把suppose 换成think你能想通吗?---What （do you think） __ her look so upset?---____by her boyfriend again?无论是do you suppose 还是do you think,都只是插入句,你用括号扩起来就很好理解了,即what made her look so upset?第二空因为有"by",所以肯定是被动语态,只剩下时态的问题,因为强调对现在的影响,所以用完成时(having done）才是恰当的 再问： having been misunderstood在句中做什么成分 再答： Having been misunderstood by her boyfriend again made her look upset。 其实第二句在完整的回答中做的是 主语再问： The retired man donated most of his savings to the school damaged by the earthquake in Yushu, _____ the students to return to their classrooms。 A,to enable B。enabling 这道题为什么选B 再答： 这个是伴随状语 用ing形式 前半句主谓宾已经全了 退休的男人捐出他大部分的积蓄给了地震中被破坏的学校，使得学生能重返学校。