[ Vocabulary ]
single source of air pollution
A. point source
B. nonpoint source
C. ozone
D. conservation
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 SuperlativesOther quiz:
Grammar › ViewNo one liked the Packers, but they were all nice to Mr. Michels anyway.
This is an example of a
A. run on
B. fragment
C. compound sentence
D. complex sentence
Past Tenses › View
My hands were dirty because I … my bike.
A. had repaired
B. had been repairing
C. repaired
D. was repairing
Modals › ViewHe ________ 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