Choose suitable idioms from C and D on the vocabulary section to fill the gaps.

1. Selim’s business has been going through hard times but he feels at last the tide has turned
2. No, please, don’t say anything: you’ll only
3. It’s been a long, hard struggle, but I think finally we can
4. The police are trying their best to , but it’s still a real mystery at the moment.
5. You’ve been messing around achieving nothing for too long; it’s time you !
6. At last I’ve managed to get him to ; he’s paid no attention at all to us so far.
7. I found it hard to understand thermodynamics at first but I’m beginning to it now.
8. I think I’ll just and let everyone else get on with sorting matters out.
9. I wish you and John wouldn’t argue so much. Can’t you once and for all?