Select the most appropriate option to substitute the underlined segment in the given sentence. If no substitution is required, select No improvement. As a result of various inventions during Victoria's reign, travel and communication became better and improved sanitation techniques turn filthy streets in clean roads. (a) turn filthy streets into clean roads. (b) tumed filthy streets into clean roads. (c) turning filthy streets in clean roads (d) No improvement

Options

A. turn filthy streets into clean roads.
B. tumed filthy streets into clean roads.
C. turning filthy streets in clean roads
D. No improvement

Answer

B

Explanation

turn filthy streets in clean roads should be replaced with "turned filthy streets into clean roads". The first part of the given sentence is in the past tense, so V, form of the verb should be used. turn filthy streets in clean roads D u turned filthy streets into clean roads”