Perfect Your Sentences

120 grammar and vocabulary mistakes to avoid.The purpose of this book
English is full of problems for a foreign learner. While some of these problem points
are easy to explain, others cause difficulty even for the advanced students and
learners. For example, how exactly is the present perfect tense used? What are the
differences between big, large and great, between come and go? Is unless the
same as if not?
This eBook is a guide to questions of this kind. It addresses 120 points which
regularly cause problems for the foreign learner. Rules and guidelines are given,
using as little linguistic terminology as possible.