This is / These are

• This is a cat.

• This is cat.

• These are cats.

• This is a book.

• These are books.

• These are newspapers.

• This is an bird.

• This is a bird.

• These are birds.

• These is birds.

• These are an ball.

• These are balls.

• This is a ball.

• This is ball.

• This is an alligator.

• This is alligator.

• These are alligators.

• This is a dolphin.

• These are dolphin.

• These are dolphins.

• These are dinosaurs.

• This is a dinosaur.

• This is an dinosaur.

• These is a sharpener.

• This is an ruler.

• This is a ruler.

• This is an eraser.

• These are lions.

• These are lion.

• These are tigers.

• This is a lion.

• This is a mango.

• This is an apricot.

• This is an apple.

• This is a pineapple.