Identify the one underlined word or phrase that must be changed in order for the sentence to be correct: The president refuses to accept either of the four new proposals made by the contractors.

Chose the incorrect part (A,B,C,D) in the following: Malnutrition is a major cause of human suffering in those countries where the production of rice have been impeded by frequent drought.

Identify the one underlined word or phrase (A,B,C.D) that must be changed in order for the sentence to be correct.

To become Psychology mature, one has to develop an individual way of life distinguished from a mere identification with collective standards.

Choose the underlined part of phrase (A,B,C,D) in the followig that must be changed to make the sentence correct. The number of pupils in Primary Schools with reading difficulties have fallen this year.

Choose the incorrect part:
Cans of paint must be shaking to mix the pigments with the medium in which in which they are suspended.