people came to the Great Wall during May Day Holiday.

I called you yesterday evening, but nobody answered the phone. –Oh, I ___ a walk with my parents at that time.

You must look ______ your mother. She is ill now. [ ]

Health is very important to us. We should eat more vegetables and fruit ____ too much rich food.[ ]

Since the villagers’ houses were damaged in the earthquake, many new ones have been ____.