Question

Harry Potter is so interesting a book that lots of teenagers like to read _________

1. A.
   it
2. B.
   this
3. C.
   that
4. D.
   one

Answer 1

A
考查代词的用法。由句意可知Harry Potter这本书很有趣，以至于很多年轻人都喜欢读“它”。空缺处是再次提及这本书，故答案选A。it＝the+名词单数，特指。