From the word lettered A to D, choose the word that best completes each of the following sentences The disease was....by the doctors as pneumonia.

Step 1: Analyze the question We need a word that fits "The disease was ____ by the doctors as pneumonia." The sentence is in the passive voice, and the doctors are identifying what the illness is.

Step 2: Explain the concept

• Diagnose means to identify a disease or illness by examining the symptoms. It is commonly used with "as" (e.g., "diagnosed as malaria").
• Prescribe means to authorize a medicine or treatment. You prescribe drugs, not a disease.
• Construct means to build something, such as a house or bridge.
• Decide means to make a choice. It does not fit with "as" in this way.

Step 3: Test each option

• A. "The disease was diagnosed by the doctors as pneumonia." ✔ Natural and correct.
• B. "The disease was prescribed... as pneumonia." ✘ You can't prescribe a disease.
• C. "The disease was constructed... as pneumonia." ✘ Illogical.
• D. "The disease was decided... as pneumonia." ✘ Doesn't make sense in this structure.

Step 4: Answer The correct option is A. diagnosed.

Tip: Link words to their fields. Doctors diagnose (identify the illness) and prescribe (give the medicine). Remember: diagnose = disease, prescribe = drug.