U. Encircle the modal and underline the main verb in the following sentences below.

11-12. We must follow safety protocols strictly.

13-14. i have to wash my hands thoroughly to remove the virus.

15-16. The use of alcohol will make your hands cleaner.

17-18. You might catch the virus if you do not wash your hands.

19-20. We should wear face masks and face shields too.​