[ Passive Voice ]
The key ………. to open the door.
A. was used
B. were used
C. was be used
D. were be used
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Simple and Progressive Verb TensesPrepositions of Time, Place, and MovementModals TensesFuture Perfect TenseFamily VocabularyGrammar - direct/indirect objectsPresent Perfect and Present Perfect ContinuousPronouns, Sentence Structure, and ApostrophesPast and Present Continuous tensePresent and Past Simple PassiveOther quiz:
Vocabulary › ViewEarthquake waves travel slowly through the hotter parts of the ______ and speed up in colder, denser areas.
A. kinetics
B. mantle
C. lipids
D. latitude
Grammar › View
Faraday was the man ________ invented the first electric motor.
A. who
B. what
C. when
D. where