Answer and explanation

Correct answer: B. Walking into the laboratory, the equipment looked very old to the visitors.

  1. Step 1: A participle phrase must describe the subject of the main clause. Step 2. In the sentence 'Walking into the laboratory, the equipment looked very old to the visitors' the phrase 'walking into the laboratory' appears to describe 'the equipment', which cannot walk. Answer: Walking into the laboratory, the equipment looked very old to the visitors. Why not the others: In the other sentences the phrase correctly refers to the visitors, or a full clause is used.

Practise more Structure and Usage.

Free questions with an explanation for every one, and full timed Iraqi National English Proficiency Test (INPT) mock tests.