Grammar Quiz
[ Vocabulary ]

single source of air pollution

A. point source

B. nonpoint source

C. ozone

D. conservation

Select your answer:
A  B  C  D  E 


Random Topics:

Adverbs of frequencyTOEFL Adjective and AdverbPassive Voice in Past Simple TenseGrammar Past and Future TenseInfinitives and ING FormsArticles & PrepositionTime and CalendarPast Tense and Past ContinuousWould/would like - affirmative/negativeComparatives and Superlatives

Other quiz:

Passive and Active Voice › View

What is the formula of Past Perfect tense (Passive Voice) ..

A. O+Had+Been+V3+By+S

B. O+Would/Should+Be+V3+By+S

C. O+Had+Been+Being+V3+By+S

D. O+Was/Were+V3+By+S

Tenses › View

Future Perfect: By the end of the month, he ________ his project.

A. will have finished

B. will be finishing

C. finishes

D. finished

Modals › View

He ________ ride a bike because he never learned how.

A. can

B. can’t

Modals and Present Tenses › View

Michael and Daniel _____ a lot these days, but _____ their assets.

A. is traveling / can sell

B. cannot travel / is selling

C. can travel / selling

D. are traveling / cannot sell

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