7. gentle As gently as possible

5. ①from which I can benefit a lot for my future. ②People often get much __benefit from traveling. ③benefits

bined

4. ①Although he has limited technical knowledge　 ②The teacher limited his students to 500 words for their compositions.

3.strengths　 weaknesses.

2. Our company will do everything to satisfy our customers.

1. ①balancing　 ②balanced　 ③It’ll also damage the balance of nature.

29. As I was sitting down to have supper, the telephone ________(偏偏) ring.

28. You may keep the book a further week ________ ________(倘若) no one else requires it.

27. You must ________ ________ ________(摆脱) all your worries and have a good rest.