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Question

Difficulty: EasyParallel Structure

To prepare for the chemistry lab, students must put on their safety goggles, tie back long hair, and they should wash their hands thoroughly.

Which of the following options completes the sentence with the correct parallel structure?

  1. A
    they should wash their hands
  2. wash their handsAnswer
  3. C
    washing their hands
  4. D
    hands are washed

Answer

wash their hands
The correct option is 'wash their hands' because the list contains three actions that the students must perform. The first two actions, 'put on' and 'tie back', are expressed as base verbs. To maintain parallel structure, the third action must also be a base verb: 'wash'.

Step-by-Step Solution

1
Identify the items in the list and analyze their grammatical structure.
The first two items in the list are 'put on their safety goggles' (starting with the base verb 'put') and 'tie back long hair' (starting with the base verb 'tie').
To maintain parallel structure, the final item in the list must also start with a base verb in the same form.
2
Evaluate the choices to find the one that begins with a base verb and fits the pattern.
The option 'wash their hands' begins with the base verb 'wash', completing the pattern: 'put on...', 'tie back...', and 'wash...'.
This matches the active voice and base verb form of the other items in the list.

Key Concept

Parallel structure requires that items in a list or series maintain the same grammatical form.
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Topics

Parallel Structure

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