[ Grammar and Vocabulary ]
Air pollution is a consequence of fossil fuel burning by motor vehicles, factories, aircraft and rockets.
A. product
B. example
C. harm
D. result
Random Topics:
Parts of Speech and Grammarmust/shouldTemporal Conjunctions and ConnectivesPrepositions of Place & TimeAdjective or Adverblike/do not likeAdverbs, Infinitives, Definite ArticleInfinitiveConditional Sentence 0, 1Modals for Ability, Possibility and PermissionOther quiz:
Grammar › ViewLast weekend, I ____ breakfast.
A. cook
B. cooked
C. will cook
Grammar › View
Jenny completed her math exam __________ than her classmates.
A. quicker
B. quickest
C. more quickly
D. most quickly
Modal Verbs › ViewWe ____ eat fast food very often. It isn’t good for us.
A. should
B. shouldn’t
C. don’t have to
D. couldn’t
Vocabulary › View
In the sentence “The path was perilous, filled with sharp rocks and steep cliffs,” what does “perilous” mean?
A. safe
B. dangerous
C. easy
D. obscure