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

Experiments were conducted to try to teach Chimpanzees sign language.

type of verb:

active

passive

B. Passive

Explanation:

Identifying passive voice: such sentences usually consist of verbs like was, were, is, are, has, had, have, to be, may be and will be. In addition it has the past participle of an action verb e. g. words ending in - ed or - en, like were studied, will be considered, are being conducted, etc.