[ Grammar ]
Infrastructure ____ to maintain attractive tourism destinations inevitably involves energy and resource consumption, putting added pressure on the local ecosystems.
A. require
B. requires
C. requiring
D. required

Random Topics:
Present and Past TensesLinkers and ConjunctionsVerb Tenses and Subject Verb AgreementSimple Tenses in EnglishTenses and Time MarkersPast Tense vs Present TenseGoing To Be and WillTime and CalendarThe Past Simpleanother/the others/each other/one anotherOther quiz:
Modal Verbs › ViewHe … be here in a minute
A. should
B. will
C. might
Present Perfect Tense › View
what verbs do you use with present perfect?
A. Only past verbs
B. Present or infinitive verbs
C. Past participle verbs
D. ing verbs
Gerunds and Infitinitives › ViewI think it would be very stressful ______ your own business. (run)
A. to run
B. running
Vocabulary › View
a story in which the characters, settings, and events stand for abstract or moral concepts
A. allegory
B. tragedy
C. parable
D. imagery
