PRESENT CONTINUOUS: SPELLING

http://www.eslgamesworld.com/members/games/grammar/present%20tenses/new/present%20progressive%20spelling.html

PRESENT CONTINUOUS GAME: FLING THE TEACHER

http://www.eslgamesworld.com/members/games/grammar/fling%20the%20teacher/actionverbs/present%20progressive%20multiple%20choice.html

PRESENT CONTINUOUS

http://www.isabelperez.com/happy/tenses/present_cont.htm

PREPOSITIONS OF PLACE

Exercise 1
http://www.quia.com/pop/294943.html?AP_rand=1097939373

Exercise 2
Where is the mouse ?
http://www.tcet.com/eaonline/FlashedESL/CatsMX.swf

ADVERBS OF FREQUENCY

Exercise 1
http://esl.lbcc.cc.ca.us/eesllessons/adverbfreq/adfreqz.htm

Exercise 2
http://www.englishspace.ort.org/esdemo/startdemo_5.htm