Direction: Select the option that is the (Active/passive) form of the given sentence.
Animals cannot make tools.

Options

A. Tools are not to be made by animals
B. Animals cannot be made by tools
C. Tools could not be made by animals
D. Tools cannot be made by animals.

Explanation

(d) Tools cannot be made by animals. (Correct)(a) Tools are not to be made by animals. (Tense has changed) (b) Animals cannot be made by tools. (Incorrect Subject and Object) (c) Tools could not be made by animals. (Tense has changed)