Test of English as a Foreign Language - Sentence Correction

Whole-hearted participation from the employees are the only measure by which we can determine if the initiatives are working.

Would you like us to keep an eye at your house when you are on holidays?

In your first job, older colleagues automatically think you're still wet with the ears and seldom take you seriously.

I could never be blamed because the matter was discussed beyond my back. I had no say in it.

'Do you still go to art exhibitions?' 'Only once on a blue moon, I'm afraid. No time anymore.'