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 › View_______live in Ho Chi Minh City than in the whole of the rest of the country.
A. As much as people
B. More people
C. As many as people
D. People more
Verb Patterns › View
The company is investing heavily in __________ advanced technology to stay competitive.
A. adopt
B. adopting
C. to adopt
D. adopted
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