Multiple choice

A substance derived from the Madagascar periwinkle, which has proved useful in decreasing mortality among young leukemia patients, is cultivated in China as part of a program to integrate traditional herbal medicine into a contemporary system of health care.

  1. A substance derived from the Madagascar periwinkle, which has proved useful in decreasing mortality among young leukemia patients,

  2. A derivative, which has proved useful in decreasing mortality among young leukemia patients, of the Madagascar periwinkle,

  3. A Madagascar periwinkle derivative, which has proved useful in decreasing mortality among young leukemia patients,

  4. The Madagascar periwinkle has a derivative which has proved useful in decreasing mortality among young leukemia patients, that

  5. The Madagascar periwinkle, a derivative of which has proved useful in decreasing mortality among young leukemia patients,
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Error of modifier. 'A substance derived from the Madagascar periwinkle' should be replaced by 'The Madagascar periwinkle, a derivative of which.....'.  Hence, option 5. 

Keep practicing — related questions