2. “must”

3. “Mustn’t”

4. “Should”

5. You “shouldn’t”
be careless

6. “Have to” & “haven’t to”

7. credits
• http://www.flickr.com/photos/vespeter/264144062/sizes/n/in/photostream/
• http://www.flickr.com/photos/jorgemiente/605056919/sizes/m/in/photostream/
• http://www.flickr.com/photos/kirisryche/2737063982/sizes/m/in/photostream/
• http://www.flickr.com/photos/timsamoff/342704965/sizes/z/in/photostream/
• http://www.flickr.com/photos/toddmecklem/4095117507/sizes/z/in/photostream/
• http://www.flickr.com/photos/vgm8383/2803305840/sizes/z/in/photostream/
http://www.flickr.com/photos/brixton/2197616436/sizes/m/in/photostream/
• http://www.flickr.com/photos/pokpok/2919144729/sizes/z/in/photostream/
• New headway pre intermédiate student’s book (third edition)
by John And Liz Soars