In Each Sentence Below, a Blank Space Appears Where the Verb

question 17

Multiple Choice

In each sentence below, a blank space appears where the verb should be. Choose the correct helping verb and past participle form. Select the letter of the correct answer. Professors Smithson and Knoll ____ on math anxiety at three different colleges this year.

• A) have speak
• B) have spoken
• C) has spoken

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Definitions:

Subarachnoid Space

The interval between the arachnoid membrane and the pia mater that is filled with cerebrospinal fluid, and surrounds the brain and spinal cord.

Cerebrospinal Fluid

A transparent, colorless fluid present within the brain and spinal cord that serves to protect the brain's cortex by cushioning it, offering essential mechanical and immunological defense within the skull.

Spinal Tap

A medical procedure where a needle is inserted into the lower back to collect cerebrospinal fluid for testing.

Enlargements

Increases in size or volume of an organ or structure, often due to cell growth or accumulation of materials.