Level 9 Teens 

Unit 8

Question tags

https://www.ego4u.com/en/cram-up/grammar/question-tags/exercises

http://www.englishexercises.org/makeagame/viewgame.asp?id=2520

http://www.englishexercises.org/makeagame/viewgame.asp?id=6486

http://www.perfect-english-grammar.com/question-tags-exercise-1.html

http://www.englishgrammarsecrets.com/questionstags/exercise1.html

http://www.englishgrammarsecrets.com/questionstags/exercise6.html

 

Should have

http://www.englishexercises.org/makeagame/viewgame.asp?id=8438#a

http://www.englishexercises.org/makeagame/viewgame.asp?id=4687

http://www.englishgrammarsecrets.com/shouldhave/exercise2.html

http://www.englishgrammarsecrets.com/shouldhave/exercise5.html

 

Second Conditional

http://www.ego4u.com/en/cram-up/grammar/conditional-sentences/type-2/exercises

http://www.ego4u.com/en/cram-up/grammar/conditional-sentences/type-2/exercises?02

http://www.perfect-english-grammar.com/second-conditional-exercise-1.html

http://www.englishpage.com/conditional/conditional2.htm