Jawaban:

1.There is a computer labaratory in my school

2.There are sixty computers in the computer laboratory

3.There is a Headmaster in my school

4.There are twenty teachers in Staffroom

5.There are nine classrooms in my school

6.There are twenty one desk in each classroom

7.There is a screen in each classroom

8.There is a library in my school

9.There are two yards in my school

10.There is a canteen in my school

Penjelasan:

There is:Digunakan untuk benda atau orang yang jumlahnya tunggal

There are:Digunakan untuk benda atau orang yang jumlahnya jamak(lebih dari satu)