Put the verbs in the active or passive voice. 5.Cranial and facial bones (to compose) the skull.
6.The upper extremity (to connect) with the trunk by the shoulder.
7.Each gland (to produce) secretions.
8.The spinal column (to form) by the vertebrae.

Cranial and facial bones compose the skull.

The upper extremity is connected with the trunk by the shoulder.

Each gland produces secretions.

The spinal column is formed by the vertebrae.

Explanation:

In grammar, the term voice refers to the relationship between the action or state expressed by the verb and the participants of the sentence, such as the subject, object, and others. There are two voices in English:

In the given question, we need to pay attention to the context and the way the sentence is constructed. We can recognize sentences where passive voice will be used by the construction by + the word marking who performs an action. This is why the passive voice will be used in the second and fourth sentences, and active voice in the first and the third sentences.

answer; (d) i believe the best answer is ; ///people said that man could not fly, but in 1903, orville and wilbur wright made the first sustained powered flight in a heavier- than-air machine;