My birthday is _______ November.A. at B. in C. on
The little girl likes to _______ as an angel(天使), so she asks her mother to buy her lots of clothes.
We all know trees play an important role in _______up the air.
Lucy and Lily are twins, but they are different _____each other in many ways.
It is necessary for students ______ good studying habits.
--I think people here are friendly. Do you _______me? --Yes, you are right.