UNIT 5

CAN 

Ability She can play the guitar.

Possibility They can pass the exam.

Permission Can I go to the toilet?

MUST Obligation You must help your mother.

MUSTN'T Prohibition You mustn't smoke here.

EXERCISES

1 http://www.englishexercises.org/makeagame/viewgame.asp?id=1518

2 http://www.englishexercises.org/makeagame/viewgame.asp?id=5140

3 http://www.english-grammar-lessons.com/can/exercise3.swf

4 http://www.englishexercises.org/makeagame/viewgame.asp?id=2786

5 http://www.english-grammar-lessons.com/can/exercise1.swf

6 http://roble.pntic.mec.es/jheb0015/Ework/Must_1.htm

7 http://www.english-grammar-lessons.com/can/exercise4.swf

8 http://www.english-grammar-lessons.com/musthaveto/exercise8.swf

9 http://www.english-grammar-lessons.com/can/exercise5.swf

10 http://www.englishgrammarsecrets.com/musthaveto/exercise1.html

11 http://www.englishgrammarsecrets.com/can/exercise1.swf

12 http://www.englishgrammarsecrets.com/musthaveto/exercise2.html

13 http://mbonillo.xavierre.com/exercises/eso1/1eso2007/can3.htm

14 http://www.englishexercises.org/makeagame/viewgame.asp?id=1172

15 http://spot.pcc.edu/map/prev/can-cant.htm

16 http://saberingles.com.ar/curso/lesson13/05.html

17 http://www.englishexercises.org/makeagame/viewgame.asp?id=3341