Jack is a good friend _______, and he often comes to our home for a visit.

 — Do you think the __________ of this skirt suits me?— Of course! You always look beautiful in red.

Many people are thinking of new ways to fight the pollution of the __________.

Climbing the Great Wall might make you very tired, but it’s a meaningful _________.

At the foot of the hill you could hear nothing but the ______ of the running water.