Gender neutrality

"English Style Guide" released by the Commission is hereby available.  On pages 48 - 49 you can find the section on gender neutrality. 

Tenses and key words

Here you can find many exercises on tenses.  I am also hereby making a list of all the tenses and key words available

State vs. action verbs

Here is  a document where you can find information and exercises on state vs. action verbs, along with key for the  exercises. (Source: English Grammar in Use: Intermediate by Raymond Murphy)

Here is a link for a webpage where you can find some  exercises on the same topic.   

Here you can find the list of verbs we have looked at. (Source: LONGMAN Advanced Learners’ Grammar by Mark Foley &  Diane Hall )

EU Enlargement

Here is the official Commission website on enlargement.

Here is an article from The New York Times on the same topic.

Subject-Verb agreement

You can find a document on subject-verb agreement with exercises here.  The key for the exercises is available here.

A longer document entitled "Grammar and Punctuation for Business Communication"  is hereby available.  Please refer to pages 11 - 14 for subject-verb agreement.