The correct tag question to complete the sentence "Scientists are close to finding a cure for cancer," is aren't they.
Here's why:
- The main part of the sentence ("Scientists are close...") uses the positive form of the verb "to be" (are).
- Therefore, the tag question needs to use the negative form of the same verb ("aren't they?").
اذا كان لديك إجابة افضل او هناك خطأ في الإجابة علي سؤال (Scientists are close to finding a cure for concer, (are they - they are - aren't they اترك تعليق فورآ.
