It was built by the Roman Emperor Hadrian and for centuries it was (1) big enough/ enough big to stop the barbarians invading England.

1 These exercises aren't easy enough. (difficult) -->

You cannot walk on the entire wall because it (3) is strong enough / isn't strong enough

1 It was too cold to visit the caves. It was ... (warm).

The Romans left Britain at the beginning of the fifth century when the Roman Empire became (2) not big enough / too big and the wall began to become a ruin.

5 The reef is not safe for children. It's ... (dangerous).

If you have (5) too time / enough time, you can walk next to the wall for 135km,

, but go in summer because in winter it's (6) too wet / wet enough!

3 Six people wanted to go to the museum. Luckily, Carla's car was ... (big).

You cannot walk on the entire wall because it's (4) too old / not old enough.

4 I wanted to go to the opera, but I didn't have ... (money).

4 It wasn't the right temperature to snow. (cold). -->

2 The Formula 1 car isn't fast enough. (slow) -->