QUES: Continue writing.

I couldn't zip the backpack with the book in it because the 

OPTIONS:
- book is too short.
- backpack is too short.
+++++++++
ANS: backpack is too short.


QUES: Continue writing.

Once the panties got hardened and the leggings were laundered with softening agents, the 

OPTIONS:
- panties were smooth.
- leggings were smooth.
+++++++++
ANS: leggings were smooth.


QUES: Continue writing.

Monica was helping Emily to lose weight because 

OPTIONS:
- Monica was obese previously and needed help.
- Emily was obese previously and needed help.
+++++++++
ANS: Monica was obese previously and needed help.


QUES: Continue writing.

His vehicle was better for road trips than my car because the 

OPTIONS:
- vehicle was uncomfortable.
- car was uncomfortable.
+++++++++
ANS:
car was uncomfortable.