Most parents encourage their children to take an active part in social events, ______ those events do not interfere with their studies.
The earthquake _____ fear _____ his heart.
_____ he graduated from college, he became a success in business.
Scientists are hoping for a _____ in the search for a cure for cancer.
____ news came _____ an unknown disease was spreading in the area.
They have no idea at all ______.