Find out the mistakes

find out the mistakes.
1.my new(A)classmate is(B)very kind(C)to me(D).
2.how do(A)you spells(B)your(C)name(D).
3.l is(A)twelve(B)years old(C).
4.l am(A)twelve(B)years(C)old.
5.my father and(A)my brother doesn 't(B)eat(C)breakfast in(D)the morning.
help me mình sẽ đánh giá 5 sao