people have always been curious ______ how living things on the earth exactly began

In 1998, Liu Xiang’s ________ in hurdling was noticed by Sun Haiping.

How did you get out of the forest at last– By following the ____ I had left.

4 colorful clay Warriors ____ at No. 1 pit, ______ in height from 1.8m to 2m, have black hair, green, white or pink faces, and black or brown eyes.

I will go on vacation this Sunday. ——_____________________.