7. wnen he saw the crash,the young boy acted very(responsible) and called the police.

6. It soon became clear that Andrew was (firm) in charge.

5. The airport upgrades are needed to help make flying more (enjoy) .

4. My dog barks (constant) when he’s in the car.

3. Perhaps a more (caution) approach would bring better results.

2. It is important to run for half marathon training,but recovery is (equal) important.

1. All the people are (concern) about the growth of the younger generation.

10. To be h with you,I don't like the idea of living so far away from my family.

9. (绝望的) with anxiety,Bob and Hans searched the whole house.

8. It is an almost u truth that the happier a human being is,the longer he lives.