His diligence was ______ he made great progress.
A. so that
B. such that
C. in order that
D. so as that
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______ he entered the university, his English has been much improved.
A. Before
B. After
C. When
D. Since
Rod is determined to get a seat for the concert ______ it means standing in a queue all night.
A. as is
B. provided
C. even if
D. whatever
Someone must have left the tap on, ______ the water was running over and flooding the bathroom.
A. for
B. moreover
C. nevertheless
D. therefore
Human behavior is mostly a product of learning, ______ the behavior of animal depends mainly on instinct.
A. whereas
B. so
C. unless
D. that