Children and old people do not like having their daily ________ upset.
A habit
B practice
C routine
D custom
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The criminal always paid ________ cash so the police could not track him down.
A on
B by
C for
D in
________ when she started complaining.
A Not until he arrived
B Hardly had he arrived
C No sooner had he arrived
D Scarcely did he arrive
By 1990, production in the area is expected to double ________ of 1980.
A that
B it
C one
D what
Professor smith and Professor Brown will ________ in giving the class lectures.
A alter
B change
C alternate
D differ
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