Adam hated gum whereas Joel loved it because 
OPTIONS:
- Adam hated chewing for long periods of time.
- Joel hated chewing for long periods of time.
Adam hated chewing for long periods of time.

the demand for the products in the market exceeded the products available, the 
OPTIONS:
- demand were  few.
- products were  few.
products were  few.

We like to dance the tango more than the waltz since the 
OPTIONS:
- tango is more fun.
- waltz is more fun.
tango is more fun.