[ Vocabulary ]
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:
Present Perfect and Past Simple › ViewI don’t remember that book well. I …… it many years ago.
A. didn’t read
B. read
C. have read
D. haven’t read
Tenses › View
The man went to prison because he had _____ a lot of money.
A. stealed
B. stole
C. stolen
D. stealing
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
