To my mind new gadgets will be envelope in 2100. They will look like sensory panel. Everyone could use the Internet and mobile communications everywhere. All students will have e-book and they shouldn't care theirs heavy backpacks. Soon people couldn't live without gadgets
1 has always been
2 has just returned
3 latest
4 is interviewing
5 did you become
6 tell
7 was sitting
8 saw
9 decided
10 how long have you been travelling
11 have visited
12 countries
1)some
2)some
3)any
4)no
5)any
6)some
7)some
8)any
9)any
10)any
11)any
12)some
13)no
1.itself
2.myself
3.themselves
4. himself
5.ourselves