UNIT 6_REVIEW GRAMMAR

could / couldn't + ........

• V

• V-ing

• V-ed

• to V

We use could/couldn't to talk about abilities ............

• in the present

• in the future

• in the past

Some dinosaurs _______ only eat plants, so they were plant-eating dinosaurs.

• can

• could

• didn't

• couldn't

Some dinosaurs could run fast, but some _________.

• could

• couldn't

• can't

• can

The first dinosaurs appeared 220,000,000 years _________.

• yesterday

• now

• ago

• after

A dinosaur couldn’t ________ properly without its tail.

• ran

• run

• running

• to run

The Parasaurolophus could ________ a loud noise using the tube on its head.

• make

• made

• to make

• making

The biggest dinosaurs ………………… long necks and long tails.

• has

• have

• had

• could

……………………… dinosaurs were as tall as a building. Others were as small as a duck.

• All

• Some

• No

• Much

………………………… dinosaurs had tails.

• All

• No

• Any

• As