Multiple choice

Directions: Four parts of the sentence given below have been underlined. Identify the part having an error. If no part has an error, mark (5).

(1) While studying the chemistry of (2) human body, Dr. Rosalyn Yalow won a Nobel Prize for the research she (3) conducted on the (4) role of hormones. (5) No error

  1. (1)

  2. (2)

  3. (3)

  4. (4)

  5. (5)
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In case of two successive actions in the past tense, the action that occurs earlier uses past perfect tense (remember the example: the patient had died before the doctor came). 

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