[ 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

Random Topics:
Zero and First ConditionalsPossessive Adjectives VS Possessive PronounsReported Speech and SubjunctivePaired ConjunctionToeic VerbSynonymsState Verbs and Action VerbsPresent Simple TenseActive and PassiveIntermediateOther quiz:
Tenses › ViewTomorrow I ……….my parents.
A. am going to visit
B. will have visited
C. have visited
D. visit
Tenses › View
Which tense is used for actions that have begun, are in progress, and will finish at some point in the future?
A. Present Perfect Continuous Tense
B. Present Continuous Tense
C. Past Perfect Tense
D. Simple Present Tense
Grammar › ViewWhich word belongs in the blank: If I can’t have the chocolate bar, ______ I’ll just have hot chocolate instead.
A. than
B. then
Comparative Adjectives › View
London is _________ than Glasglow.
A. more busy
B. busier
C. busyer
