In many countries more and more forests and even agricultural land are being lost to development, _______ much of the land to become desert. 

(2013·湖南，25)The sun began to rise in the sky，________the mountain in golden light.

During the scientific experiment, Mr. Chen carefully poured the water into the tube, with my classmates ____ beside to see what would happen. 

At the age of five her father died, ___ her an orphan.

Dr Yuan makes______ possible______ one-third more of the crop in the same fields.