Select the alternative that will improve the underlined part of the sentence in case there is no improvement select "no improvement".
The Urban Art Commission has suggested that the landscape be developing by adding water fountains around the sculpture.

Options

A. be developed with
B. to be developed by
C. No improvement
D. be developed by

Answer

D

Explanation

.be developed by. should be used in place of be developing by.. The landscape can only be developed by someone else. Thus, be will take the third form of the verb after it to convert the sentence into passive form. Hence, option d is the correct choice