1. I don't like that old car he's working on, but it's .......... to his heart, so I put up with it, Lisa said.

2. Chemistry is a closed .......... to me. I'll never understand it and don't even want to try anymore, his roommate told him.

3. What's the matter? Do you have .......... ears or something? His mom asked when she found out that he had forgotten to take out the trash after being asked.

4. He felt that she was living in .......... cuckoo land. It was not realistic, in his opinion, to believe one could make a lot of money by selling hand-copied poetry of great artists.

5. He asked me to dinner on Friday. I am so happy! I am on cloud ..........!

6. The cabinet member resigned and left under a .......... of suspicion.

7. The company was doing well, but Steve could see clouds on the .......... and wasn't sure how to avoid the problems.

8. You are clutching at .......... here, Mike. You are going to get fired and there is nothing you can do about it, Zack said.

9. The defense's witness's testimony was the clutch .......... for the case. After the testimony, there was no doubt in anyone's mind that the defendant was innocent.

10. That's like bringing .......... to Newcastle. It's a waste of time and money. It's totally unnecessary and will just make the boss even angrier.