1 Friday,
2 hotdog,
3 piano keys,
4 when you are on a horse,
5 teapot
6 cuz cold is with the old(牵着个老人)
7 cola, tea, alcohol
8 water,
9 when it is blue,(色情，该叫dirty books)
10 birds can't walk
11 it is sunny(或者说beach umbrella遮阳伞)
12 they both have an “s”
13 age