Question

Укажите, в каких предложениях глагол стоит в форме Con­tinuous. 1. The muscles are contracting under stimulation. 2. Striated muscle tissue consists of large fibres. 3. The walls of the blood vessels are con­tracting or expanding in response to a stimulus. 4. Striated muscles are necessary for manipulating the bones of the skeleton.

Answer 1

Ответ:

1. The muscles are contracting under stimulation.

3. The walls of the blood vessels are con­tracting or expanding in response to a stimulus.

Объяснение:

Answer 2

Sentences with verbs in Continuous form:

1. The muscles are contracting under stimulation. 2. The walls of the blood vessels are contracting or expanding in response to a stimulus.

Explanation:

In the given sentences, the verbs "contracting" and "expanding" are in the Continuous form. The Continuous form, also known as the Progressive form, is used to indicate an ongoing action or state at a specific time. It is formed by using a form of "be" (in this case, "are") followed by the present participle of the verb (in this case, "contracting" and "expanding").

In sentence 1, "The muscles are contracting under stimulation," the verb "contracting" is in the Continuous form to indicate that the action of contracting is happening at the present moment.

In sentence 3, "The walls of the blood vessels are contracting or expanding in response to a stimulus," the verbs "contracting" and "expanding" are in the Continuous form to indicate ongoing actions of contraction and expansion in response to a stimulus.

It is important to note that the other sentences in the provided text do not have verbs in the Continuous form.

Source: - Sentence 1: [[1]] - Sentence 3: [[3]]