the ability to be maintained at a certain rate or level
A. energy conservation
B. human impact
C. renewable resources
D. sustainability
E. availability
Random Topics:
Articles & Compound NounsAction vs Linking Verbs/ Verb PhrasesVerb AgreementLinking Words and PhrasesSimple Past ContinuosTenses and QuestionsReflexive Pronouns & Modal VerbsTypes of PhrasesPreposition of PlaceVerbsOther quiz:
Use of Prepositions or Conjunctions › ViewOboro will always ____ his friends.
A. stand up for
B. stand down for
C. stand across for
D. stand beside for
Tenses and Voice › View
Differentiate between the present perfect and past perfect tenses.
A. Present perfect describes actions that will happen; past perfect describes actions that are currently happening.
B. Present perfect is used for future actions; past perfect is used for ongoing actions.
C. Present perfect indicates relevance to the present; past perfect indicates an action completed before another past action.
D. Present perfect indicates an action completed in the future; past perfect indicates an action that is still ongoing.
Grammar › ViewChoose the sentence that is written correctly.
A. I am remembering your face!
B. I remember your face!
C. I am remember your face!
Grammar › View
When Paul was at my flat yesterday, he asked if he _______________ use the phone.
A. can
B. could
C. may
D. must