look after:quan tâm,chăm sóc.
look for:tìm kiếm.
look at:nhìn.
Ví dụ:
-I look after my crush.
-My mother look after me when I was a child.
-My father look after his work.
-I look for new word on the dictionary.
-I look for the games on the computer.
-My mother look for information of staff.
-I look at the boy in the bakery,
-My mom look at my father is very lovely.