____________ town it is !—Yes .Great changes have taken place here since we began to build a civilized（文明的）city .

Wind power is an ancient source of energy ____ we may retum in the near future.[ ]

Completely ______with delicious food, Tom wanted to stay there for another two days.

The second Sunday of May is Mother’s Day and a time to be to our mothers.

My mother always gets a bit____if we don’t arrive when we say we will.[ ]