Answer: please find answers in explanation column
Explanation:Completing each sentence with a word or phrase in the correct form with the same meaning as the phrase in bracket gives us
1. I think many teenagers don't.....have a high opinion of............ their parents these days. (have a high opinion)
2.There's something I can't keep secret any longer. Can I........share a secret with you? (share a secret)
3. I can't work with him on this project. We don't seem to --agree completely------with each other about anything. (agree completely)
4. My boss expressed approval of me yesterday for all the hard work I've been doing lately. (express approval)
5.Jack loves Susan very much. If she left him, it would hurt him terribly. (love very much)