The population of Pennsylvania increased from 50,000 in 1730 to more than 200,000 in 1763, ___ to the thousands of Scotch Irish.
A.in effect
B.in consequence
C.in large part
D.at large
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It is due to the invention of the computer that man has been able to work so many wonders in the past few years. A case ___ is the successful launching of space shuttle.
A.in point
B.in question
C.in a way
D.in brief
We won't encourage him to do that ___ he is in good health.
A.even if
B.in case
C.as if
D.when
Lying ___ far back in the mountains, the coal had to be hauled from a deep valley.
A.as it is
B.as it did
C.was it
D.did it
The accident ___ downtown yesterday resulted from the driver's carelessness.
A.happening
B.happened
C.which had happened
D.which happened