Dear LEA201 students, here you have some extra material.

Grammar

• Modals of Certainty
• Past Perfect
• Tag Questions


• Review Unit 02

Present Modals of Certainty

• Class Presentation
• modals and be able to

• Inventions 01 - Printing
• Inventions 02 - Mathematics


• Inventions 03 - Navigation
• Inventions 04 - Guns