[ Grammar ]
The bark of some species of oak trees yields a substance used in —- leather.
A. treating
B. to treat
C. its treatment
D. it treats
Select your answer:

Random Topics:
Indefinite and Intensive NounAdverbs (manners & modifiers)Grammar & VocabularyInterrogative PronounsPassive Voice, Modals of Deduction and First ConditionalPresent Progressive TenseQuantifiers: too many, too much & enoughModals and TensesSimple Present Tense/be/Present ProgessiveVerbal TensesOther quiz:
Modal Verbs › ViewA: Is Mr Grey here?
B: No, but you ___________ wait in his office if you like
A. must
B. can’t
C. can
D. mustn’t
Present/Past/Future Continuous Tense › View
Next Saturday night Sonia ………………. (have) dinner with some friends. (Negative)
A. will not be having
B. will have
C. will be having
D. Will having
