Much to our shock, none of the 100 people were able to _______ the gas blast(爆炸), which brought great grief to their family.
_____ 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 ______.
Even though the Smiths have moved to a faraway place, we still see them ___.