They beat it away or pat the fat ________ it becomes firm.
A. who
B. until
C. which
D. if
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One shoulder is lower ________ the other.
A. as
B. when
C. than
D. until
She was ________tired that she could not walk any more.
A. so
B. too
C. very
D. much
Where there is water, ________ is life.
A. there
B. where
C. which
D. as
I asked the man at the booking office ________ I could have two tickets.
A. so
B. as
C. if
D. until