Problem: How does the sentence end?

Mary used a box instead of an envelope to send a sweater she made because shipping within the 
OPTIONS:
- envelope is cheap.
- box is cheap.
Answer: box is cheap.
sentence: The painter got his hand stained on the wall and he cleaned it with a towel. The  OPTIONS:
- wall is tacky.
- towel is tacky.
complete: wall is tacky.
Most of my classmates signed up for music class instead of astronomy class since the 
OPTIONS:
- music class is pretty hard.
- astronomy class is pretty hard.
astronomy class is pretty hard.
Input: Continue writing.

After finishing the braid, I tried to fix the hairband around my hair but the 
OPTIONS:
- hair was too small.
- hairband was too small.

Continued: hairband was too small.
Story needs to be completed:
My purse was heavier than my backpack because I had a lot of things in the 
OPTIONS:
- purse .
- backpack .

My choice:
purse .
Problem: How does the sentence end?

The boy decided to get a salamander instead of a lizard because the 
OPTIONS:
- salamander was cooler to look at.
- lizard was cooler to look at.
Answer:
salamander was cooler to look at.