The impact of Einstein’s breakthrough in the field of photo electric effect ____ the understanding of the universe was simply tremendous.
—Does Peter feel better? —No, he is seriously ill and still________.
He was ________and died of lung cancer at an early age.
The girl ________at the party yesterday is missing today.
Mary got up early________ she could prepare breakfast for her brother.
The teacher told him to speak louder ________by everybody.