Điền từ thích hợp vào chỗ trống.
It …………(1) teachers’ day last week. We had celebrations ………………(2) the school yard. …………(3) were a lot of teachers and students. Many ………… (4) sang and danced, some told funny stories and some ……………… (5) exciting games. Everyone enjoyed ………………..(6) celebrations very much.