________ she entered the room, she knew there was something wrong.
A. . No matter how
B. . Since
C. . As
D. . As soon as
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At the end of the semester during the official exam period, there will be a ________ exam covering all course materials.
A. . three-hours
B. . three-hour
C. . three-hours’
D. . three-hour’s
These ceremonies were ________ now it’s getting harder to find families to admit they held one.
A. . common once but
B. . common but once
C. . once but common
D. . once common but
Earlier responses suggested that it ________ factors such as family relationships, good health and job security that were the prime indicators of happiness.
A. . be
B. . is
C. . was
D. . were
Tracy and his sister are overjoyed to be reunited with their family, ________ they can’t be certain about what the future holds.
A. . though
B. . only if
C. . provided
D. . as though