Choose whether the main verb in the sentence below is active or passive.

experiments with chimpanzees revealed that the animals were able to imitate humans

The main verb in the sentence is active.

Explanation:

In most English sentences with an action verb, the subject performs the action denoted by the verb. Because the subject does or acts upon the verb, the sentences are said to be in the active voice. However, it is possible to change the order of words for the subject to be no longer active, but being acted upon by the verb or passive. In this case, the main verb is "revelead" and it is active.  The verb is not accompanied by any form of the auxiliary verb to be.

explanation:

communication is extremely important in any relationship. importance of communication has been stressed upon time and again. lack of communication creates a number of problems that only increase with time.

it is often seen that the families where people talk to each other frequently are happier. they share their joys, sorrows and other emotions with each other. there is a lively atmosphere in such families. they laugh it out together and celebrate every moment whole-hearted. they never feel lonely or bored. they know whenever they want to talk about something or share an emotion they always have an ear to listen to. such is the importance of communication.

compared to this, the families where all the members are engrossed in their own tasks and do not bother to care about or talk to people around them are usually not as happy. the atmosphere in such families is quite dull and gloomy. people are busy with their own tasks. they have friends outside and are not as close with their family members.

they plan outings with their friends and colleagues rather than their family members. this is because they have neglected the importance of communication all along and are thus not comfortable communicating with each other. and without good communication there is no way one can enjoy.

the autor of the text is bringing the point that one achievment of the president john f. kennedy was a success and this caused the next president to use a similar idea. the purposefor the use of the quotation in the text is to support the idea that peace corps was a result of the president's call. in this case, the quotation is presented as part of the writing and does not stand on its own.

answer a.