1. The police warned holidaymakers to be on the watch for car thieves.
2. Be on the watch for anything suspicious.
3. Be on the watch for thieves.
4. Environmentalists will be on the watch for damage to wildlife.
4. Wish you will love and make progress everyday!
5. Be on the watch for a sudden change in the patient's condition.
6. The police warned people to be on the watch for intruders.
7. Be on the watch for thieves in this crowd.
8. Be on the watch for sudden change in the patient's condition.
9. You should be on the watch against any attempts to cheat you.
10. The government had to be on the watch for any ideological trend towards bourgeois liberalization.