a relationship in which two organisms live together and at least one benefits
A. commenalism
B. parasitism
C. symbiosis
D. mutualism
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Few, a few, little, a littlePast ParticiplesIndefinite ArticleSimple and Continuous Present TenseSimple Present - Negative & InterrogativeFrequency AdverbsQuantifiers, Countable and Uncountable NounsDo not- Does notConditional Sentences and Verb FormConjunctions in Complex SentencesOther quiz:
Grammar › ViewIdentify the common noun.
Teddy is a sweet and intelligent boy.
A. Teddy
B. sweet
C. intelligent
D. boy
Grammar and Vocabulary › View
Ravi ________ eats eggs for breakfast.
A. sometime
B. sometimes
C. some
Phrases and Clauses › Viewin the room
A. Phrase
B. Clause
Active vs. Passive Voice › View
1 George Washington Gale Ferris began his career in the railroad industry and then pursued an interest in bridge building.
2 Ferris realized that there was a growing need for structural steel in America.
3 G.W.G. Ferris & Co. was founded to test and inspect metals for railroads and bridge builders.
4 Only later did Ferris gain fame as the inventor of the famous wheel.
If Sara wants to maintain active voice in her text above, which sentence needs to be revised?
A. 1
B. 2
C. 3
D. 4