[ Mixed General Quiz ]

The income from the oil ___ to support one of the highest standards of living in the world.
a. has used
b. has been used
c. was using
d. was being used

Select your answer:
     


Random Topics:
Parts of SpeechConditional Sentence Type 3Adjective

Next quiz: Pronoun

Several other classmates have also chosen__________topic.

A. Their
B. His or her
C. Theys


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