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Use a full form here, for example, do not.

not could

EF INT FINAL TEST LISTENING 1 Listen to an interview. Tick (✓) A, B, or C. 1 The SpaceX project will _________ for nearly 50 years. A have the first paying customer B have the youngest space pilot C be the first trip to the moon 2 Elon Musk said the journey time from Delhi to San Francisco would be _________. A less than an hour B less than half an hour C half as long as the