1. bigger
2. taller
3. more intresting
4.more difficult
7. more beautiful
8.
1.are. 2.aren't. 3.is. 4.isn't. 5.any
1. invited ... engagement
2. prefer ... won't go
3. are planning a leaving party
2. curly ... wants
5. don't understand ... confused
<span>1.
Sir, don't you know that when flying you (must) show you
passport.
2. I (must) be at the meeting at 6 p.m. so I can't join
you for dinner.
3. There are many guests in the house, George will (have
to) sleep on the sofa
4. People (must) realize there are
limits to what we can do.</span>