We feel our duty to make our country a better place.
(2014届山东省潍坊市高三3月模拟考试英语试卷) It suddenly occurred to me I hadn’t locked my door.
What seems to be a simple idea always turns out _____ that is hard to put into practice.
I’m going to buy my daughter another interesting novel, _______ she would like to read.
(2014届湖南省怀化市高三第一次模拟考试英语试卷) We used to mistake that heavy objects fell faster than light .
The young couple have been looking for houses,but haven’t yet found _________they can afford.