They took the bus back to school.(改写同义句)
问题描述：
They took the bus back to school.(改写同义句)
They ___ ___ to school ___ bus.
They ___ ___ school ___ bus.
They ___ ___ to school ___ ___ bus.
答
They _went__ __back_ to school _by__ bus.
They _returned__ __to_ school _by__ bus.
They _went__ __back_ to school _on_a__ bus.