My age is 13.这句话对吗

Where is my desk?这句话对吗? These is my sister.这句话对吗? My pen is lost.这句话对吗? The cat is at the age of 6.这句话语法对吗? we have the same age 这句话对吗 he looks younger than his real age 这句话对吗 My favorite animal is a dog .这句话对吗 My birthday is April 11st,1987.这句话对吗 my mind is very upset now.这句话语法对吗? My favorite movie is action movies这句话对吗 my favorite food is apples and tomatoes.这句话对吗 dose mr.zhang is my teacher?这句话完整对吗?