________ 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
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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
Understanding the cultural habits of another nation, especially ________ containing as many different subcultures as the United States, is a complex task.
A one
B the one
C that
D such
The manager promised to have my complaint ________.
A looked through
B looked into
C looked over
D looked after