The digital camera is so great. I’ve never seen a better one before, but the price of it is ______ in the store.

On the top of the hill ______ an ancient tower with a history of more than 1, 000 years.

___ years ago, the population of China was over 20 million.

下列表示重量单位的是______.

We are happy_______ you to the party for our friends from Beijing.