1.   Broadly speaking, all these towns looked alike.

2.   I always mix him up with his brother.

3.   They look so much alike.

4.   She and her sister look alike.

5.   The monarch and viceroy look alike.

6.   The system involves classifying lip-patterns which look alike and providing cues to disambiguate them.

7.   The twins look very alike.

8.   The twins looked so alike that only their parents could tell them apart.

9.   I always confuse you with your sister - you look so alike.

10.   I said yes to everything, but to me machines tend to look alike.