[ Vocabulary ]
The ___ caused by burning fossil fuels has become a significant global issue.
A. carbon footprint
B. language barrier
C. compost
D. single-use plastic
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Prepositions & Modal VerbsModal SpeculationQuantifies and Modals of DeductionCommas and Subordinating ConjunctionsComparatives and Past Perfect TenseHave to / Do not have toPresent Perfect Negative and InterrogativePresent Perfect SimpleSentence Structure and PunctuationThird ConditionalsOther quiz:
Grammar › ViewFill in the blanks with the correct verb form. Either the manager or the employees ___ attending the meeting.
A. is
B. are
C. has
Vocabulary › View
Music machine American Thomas Edison invented the phonograph, and made a ____________ of the nursery rhyme ” Mary had a little lamb”.
A. record
B. recordings
C. recorded
D. recording