[ Vocabulary ]
Mining is of ____________ importance to many countries in Africa.
A. gradual
B. ordinary
C. complex
D. prime

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Quantifiers & Modal VerbsVerbal CommunicationFuture Simple TensesPassive SentencePresent Simple: affirmative, negative, interrogativePrepositions of MovementDescriptionsGrammar - may & mightParts of Speech and GrammarGrammar TOEFLOther quiz:
Grammar › ViewThis floor _______________.
A. dirty
B. are dirty
C. dirty is
D. a dirty
E. isn’t dirty
Modal Verb › View
………….. anyone like coffee?
A. Could
B. Would
C. May
D. Can