.— I think a design which all the ages and social groups is not easy to make.—I can’t agree more with you.

What’s the world’s ______ national park— It’s Yellowstone National Park in the US.

It was because I didn’t attend the meeting ______ I had no idea about the matter.

Have you heard about that school bus accident?—Yes, fortunately all on board including the driver ________

after a whole day’s work that he could hardly stand it.