Use "undercover work" in a sentence

1. "Undercover work," said Brale in a whispered voice

2. was fully aware of Lepage"s undercover work and has supported and assisted the effort from

3. “Occupational hazard,” Proud smiled at Smith, “like I said, he was in the middle of some very sensitive undercover work

4. His official file at MI6 headquarters read; ‘A highly skilled and capable agent with expertise in undercover work, hand to hand combat, surveillance and reconnaissance

5. Geoff had always been happy to leave the undercover work to his partner of 10 years