The first 2 tasks are for pairwork - use one computer.
Task 1: Let's play Jeopardy. Use one computer: Jeopardy Game
Task 2: Jeopardy Game 2 (more difficult)
Now continue with individual practice
Task 3: Modal verbs must, may, might, can, could
Task 4: Modal verbs Obligation
Task 5: Fill in the blanks
Task 6: Modal verbs + tenses