[ Passive Voice ]
The theory of relativity ____ by Einstein, who was a famous physicist.
A. was developed
B. developed
C. is developed
D. develops
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Present Tense vs Past TenseGrammar (Adverbs, Prepositions, Prepositional Phrases)Present Perfect, Present Simple, Present ContinuousTime ClausePast Perfect or Past Perfect ContinuousSuffixes (ing-ed) SentencesCountable & Uncountable NounsGrammar - Punctuation of SentencesAsking & Giving AttentionAdjectives (-ed / -ing)Other quiz:
Grammar › ViewLaila had an exam ________________ she didn’t go out to play.
A. and
B. but
C. so
D. because
Mixed General Quiz › View
William Penn was required ___ two bear skins every year to King Charles II for the land of Pennsylvania.
a. paid
b. paying
c. to pay
Past participle form of TEACH
A. taught
B. thought
C. tough
D. teached
Grammar › View
Do you mind closing the window?
A. Will
B. Could
C. Would