Verified answer

1. There are plants to widen the NARROW sections of the road.

2. Store the drinks in a COOL dry place.

3. The stone steps had been worn SMOOTH by centuries of visitors.

4. The cat sat in front of him, its tail stretched out STRAIGHT.

5. Peel the apples using the SHARP knife.

6. The TV was too BULKY to fit into the boot of her car.

7. The baby seemed to be getting HEAVIER and HEAVIER.

8. He was very handsome, with strong IRREGULAR features.