Easy grammar1

the Present Simple:
http://www.ego4u.com/en/cram-up/grammar/simple-present/form
http://www.ego4u.com/en/cram-up/grammar/simple-present/form/exercises
http://www.ego4u.com/en/cram-up/grammar/simple-present/form/exercises?02
http://www.ego4u.com/en/cram-up/grammar/simple-present/form/exercises?03
http://www.ego4u.com/en/cram-up/grammar/simple-present/form/exercises?04
http://www.english-area.com/paginas/presentesimpleE2.htm
http://www.ego4u.com/en/cram-up/grammar/simple-present/form/exercises?05
http://www.ego4u.com/en/cram-up/grammar/simple-present/exceptions
http://www.ego4u.com/en/cram-up/grammar/simple-present/exceptions/exercises
http://www.ego4u.com/en/cram-up/grammar/simple-present/exceptions/exercises?02

the Present Continuous
http://www.ego4u.com/en/cram-up/grammar/present-progressive/form
http://www.ego4u.com/en/cram-up/grammar/present-progressive/form/exercises?form02
http://www.ego4u.com/en/cram-up/grammar/present-progressive/form/exercises?form03
http://www.ego4u.com/en/cram-up/grammar/present-progressive/form/exercises?form04
http://www.ego4u.com/en/cram-up/grammar/present-progressive/form/exercises?form05

Present simple vs present continuous:
http://www.ego4u.com/en/cram-up/grammar/simpre-prepro
http://www.ego4u.com/en/cram-up/grammar/simpre-prepro/exercises?ex02
http://www.ego4u.com/en/cram-up/grammar/simpre-prepro/exercises?ex03