单项选择题
（）, the book has many mistakes.
A.Having not been written carefully B.Not writing carefully C.Having written not carefully D.Not having been written carefully
单项选择题 The only thing（）really matters to the children is how soon they can return to their aunt and uncle’s farm.
单项选择题 I’d just as soon remind（）those important documents with you.
单项选择题 He always dreams of（）a chance for him to bring into full play his potential.
