1．(2019·全国卷Ⅰ)Data and identity ________ (偷窃) becomes more and more common.
答案：theft
2．You do not know whether what you're told is true or ________ (假的)．
答案：false
3．The government should issue clear ________ (指导方针) on the content of education.
答案：guidelines
4．The preface of the book includes an account of the a________ life.
答案：author's
