Chose the correct word 1.I haven't booked my plane ticket to Thailand just\yet. I'll do it tomorrow. 2.I haven't seen

Choose the correct word. 1. I haven\'t booked my plane ticket to Thailand yet. I\'ll do it tomorrow. 2. I haven\'t seen Arkady since last week. 3. He taught in India for 2 years. 4. She\'s already left for Moscow. 5. He\'s just sent the email and is waiting for an answer.