board of the company has decided to ________ its operations to include all aspects of the clothing business.
A) multiply
B) lengthen
C) expand
D) stretch
business was very successful, but it was at the ________ of his family life.
A) consumption
B) credit
C) exhaustion
D) expense
t published in 1927, the charts remain an ________ source for researchers.
A) identical
B) indispensable
C) intelligent
D) inevitable
is not good at sports, but when it ________ mathematics, he is the best in the class.
A) comes to
B) comes up to
C) comes on to
D) comes around to
ors warned against chewing tobacco as a ________ for smoking.
A) relief
B) revival
C) substitute
D) succession
carbon is added to iron in proper ________ the result is steel.
A) rates
B) thicknesses
C) proportions
