Ex 5:
1.or
2.so
3.because
4.although
5.and
6.but
7.because
8.although
9.but
10.so
EX6
1.A. because it is bad for your health
2.E. but it is broadcast too late
3.C. so you will be fat; because the old one is broken;
EX7.
1.A. Though his clothes are old
2.F. because it's not good for your eyes
3.E. or you can do more exercise