1.

In the following questions some of the sentences have errors and some have none. Find out which part of a sentence has an error. The number of that part is your answer. If there is no error, your answer is (4).Question: No source of energy is so cheap (1)/ as solar energy (2)/ in the present age of energy crisis. (3)/ No error (4).

A. 1
B. 2
C. 3
D. 4
Answer» B. 2


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