Many young ladies in the street have __________ their summer dresses in late spring.
When _______cruel man was hurting the children, there were no adults around who were able to stop______hurting.
Helen devoted herself _______ to her research and became a top scientist in the field of applied physics.
Vitamin D helps our bodies make a special chemical,and this special chemical,__________,affects our brains,making us feel happy.
. Everyone must have known the death of the waitress,________?
----Tony is such a selfish person. ----I agree. Never again _________ with him.