Form a common word from each set of 4 cards. The cards can be placed in any order, and even overlapped to hide at most one letter on each card.

1.	12.	23.
2.	13.	24.
3.	14.	25.
4.	15.	26.
5.	16.	27.
6.	17.	28.
7.	18.	29.
8.	19.	30.
9.	20.	31.
10.	21.	32.
11.	22.	33.

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The solutions are here.