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Who invented ____ lightbulb?
A. the
B. a
C. an
D. none
Random Topics:
Simple Future - WillFirst Conditional, Future Time ClausesVerb ConjugationPositive and Negative ConnotationsPresent, Past and Future TenseComparison and ModalsPrepositions of Place & TimeGrammar - TOEICAdverb Clause Connector-ing form and the to-infinitiveOther quiz:
Grammar › ViewChoose the correct negative form: She is the tallest in the class. (negative)
A. She is the shortest in the class.
B. She is not the tallest in the class.
C. She is not the tallest student in the class.
D. She is not the tallest of the class.
Grammar › View
We had ….. really good time yesterday.
A. a
B. an
Vocabulary › ViewA testable prediction used to see how something works or to solve a problem.
A. Test
B. Hypothesis
C. Balanced Forces
D. Theory
E. Gravity
Grammar › View
The kitchen is a complete mess! What ___ (the children/do)?
A. Have the children done
B. Has the children done
C. Have done the children
D. Has done the children