It is extremely hot this summer __________, many people say it has been the hottest in the past 30 years

I beg your pardon?- Your mind must have been __________ when I was speaking, wasn’t it?

Would you mind if I _____ here–__________. Go ahead, please.

（题文）People in the earthquake-stricken area were grateful for the _____ contribution which was offered by the people from all over the country.

The islands developed on their own for 80 million years and _______ have many rare animals found nowhere else[ ]