1.

In the following question, some parts of the sentence may error. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select ‘No Error’. In nineteenth century, astronomical research (1)/ was focused on the routine work of compute (2)/ the motions of astronomical object. (3)/ No Error (4)

A. 1
B. 2
C. 3
D. 4
Answer» C. 3


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