[ Grammar ]
Plastic ______ since the 19th century.
A. has used
B. was used
C. has been used
D. is used

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Gerund, Participle, Infinitive, or AppositiveComparative AdjectivesAsking and Giving SuggestionCommon Grammar Mistakes and Spelling TipsEnglish for TourismModifiersPresent Continuous, Present Perfect and Used toSubject-Verb AgreementPast TensesMixed Present TensesOther quiz:
Past Continuous › ViewWhat did you say? I __________ to you.
A. weren’t listening
B. wasn’t listening
C. didn’t listen
D. don’t listen
Grammar › View
AFTER THEY HAD PUT AWAY THE EQUIPMENT, THE WENT HOME. ……. THEY WENT HOME.
A. PUT AWAY THE EQUIPMENT
B. HAVING PUTTED AWAY THE EQUIPMENT
C. HAD PUT AWAY THE EQUIPMENT
D. HAVING PUT AWAY THE EQUIPMENT