Multiple choice

Although one link in the chain was demonstrated to be weak, but not sufficiently so to require the recall of the automobile.

  1. demonstrated to be weak, but not sufficiently so to require

  2. demonstrated as weak, but it was not sufficiently so that it required

  3. demonstrably weak, but not sufficiently so to require

  4. demonstrably weak, it was not so weak as to require

  5. demonstrably weak, it was not weak enough that it required
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The original sentence uses 'Although' and 'but' incorrectly in the same clause. Option D fixes the structure by using a clear subject and verb, avoiding the redundant conjunctions.

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