[ Grammar ]
The article is about global warming, _____ has caused many negative impacts on the environment.
A. what
B. where
C. which
D. it

Random Topics:
Past Perfect Simple & ContinuousMoods of GrammarGerund/ To Verb/ VerbPassive VoicesWorld Literature VocabularyComparative and Superlative AdjectiveAdverbial PhrasesDefinite pronouns (Subject, Object, Reflexive)Phrasal Verbs and Verb FormsOffer and SuggestionOther quiz:
Prepositions › ViewI succeeded……………………selling cars.
A. by
B. in
C. on
D. for
Grammar › View
Every night the watchman turns on all the lights and …around the building every half an hour.
A. walks
B. is walking
C. walked
D. to be walking
Some vs. Any › View· I haven’t …….. matches. (lucifers)
a. some
· b. any
Vocabulary › View
When you tell your friend that pizza is the best food.
A. infer
B. contribute
C. claim
