[ Subject Verb Agreement ]
The build-up of gases in the air from burning large tracts of forest ______ to global warming.
A. contributes
B. contribute

Random Topics:
Adverbs of DegreeGrammar PhrasesPhrase or ClauseComparison & Modal Verbs in Passive VoiceSimple vs Continuous Past TenseCountable & Noncountable NounsGerund - to Infinitive Tenses UsageCountable QuantifiersActive Voice-Present tenseOther quiz:
Grammar and Vocabulary › ViewWhat I liked about the play was its ….. ending.
A. unimaginative
B. impressive
C. communicative
D. repetitive
Grammar › View
A: Good bye.
B: _______________________.
_____
A. Nice to meet you
B. Good to see you
C. See you later
D. I am late!
Grammar › Viewthey are long and shar claws that help a bird of prey kill and carry things
A. talons
B. tails
Grammar › View
John: “I’m going to the Long Beach.”
John said that he ______ to the Long Beach.”
_____
A. is going
B. was going
C. went
D. had gone
