[ Vocabulary ]
nation produces its own goods or trades
A. productivity
B. ethnic group
C. sustainability
D. democracy
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Modals and Past ModalsDependent ClausesModals and Semi-ModalsSimple Present & Present ProgressivePast Tense & Present Perfect TenseAdverbs and PhrasesModals for ObligationPerfect and Past TenseGrammar, Conditional Sentences, VocabularyAuxiliary Verbs (be, do, have)Other quiz:
Grammar › ViewHe fell down when he …………… towards the church
A. run
B. runs
C. was running
D. had run
Grammar › View
A sandwich is made by putting a piece of meat between two pieces of bread.
A. outside of
B. in the middle of
C. by two pieces
D. beside