39. The manufacturers soon stopped marketing the drug, which (find) _____ to have serious side effects.
举一反三
- This drug is known to have _____ side effects. A: adversity B: adversary C: adverse D: adversely
- This drug contains no _____ substances and has no side effects.
- Every drug has some side effects.
- The treatment is __________ because it may have serious side effects. A: controversy B: contradictory C: controversial D: contradiction
- The side effects of the new drug are being __________ researched.