The ___ caused by burning fossil fuels has become a significant global issue.
A. carbon footprint
B. language barrier
C. compost
D. single-use plastic
Random Topics:
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:
Tenses › ViewShe ____ for hours. That’s why her eyes are red now.
A. cried
B. has been crying
C. was crying
D. has cried
Grammar › View
I’m visiting my hairdresser tomorrow. For now, I keep my head down __ myself in the mirror! I look terrible!
A. in order to see not
B. so as not to see
C. intending to not see
D. so that not to see
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