(英语)用be动词的适当形式填空

(英语)用be动词的适当形式填空
1she()a teacher.her name()mary 2l()a
boy.my name()li ming 3who()this girl?she()limei 4how old()you?l()el
even 5what()this?lt()a bird.lts name()polly 6tian cong()a good boy
7you()a girl.l'm a boy 8the woman()my friend 9()you teachers?no,we(
)not 10amy and kay()here.they()not at home11li lei()at school today
.he()drawing a picture now 12these books()blue.they()english books
13david()a student.his sister()a student too