3. Complete with in, on, by or at. 1) He’s travelling ___ the 8 o’clock train. 2) We never go to school ___ foot. 3) She’s afraid of travelling ___ plane. 4) Don’t lean out ___ the window. 5) Walk ___ the pavement.

1. He’s travelling on the 8 o’clock train.
2. We never go to school on foot.
3. She’s afraid of travelling by plane.
4. Don’t lean out of the window.
5. Walk on the pavement.

Ответ: 1) on; 2) on; 3) by; 4) out of; 5) on.