Big Question 1: Where are we in the universe?
BIG QUESTION 2:
BIG QUESTION 3:
BIG QUESTION 4:
BIG QUESTION 5:
BIG QUESTION 6:
BIG QUESTION 7:
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3.7 [Self Study] Grammar

Video lesson

Student book activities

Do activity D-E-F-G on page 33. Audio track 18 for activity D:

OD4 audio track 1-18

Grammar book Activities:

Do activity A-B-C page 14.